2019-11-04 21:01:05 -06:00 
										
									 
								 
							 
							
								
							 
							
								 
							 
							
							
								---
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								id: 5d822fd413a79914d39e9903
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								title: Part 59
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								challengeType: 0
							 
						 
					
						
							
								
									
										
										
										
											2020-06-24 16:22:14 +09:00 
										
									 
								 
							 
							
								
									
										 
									 
								
							 
							
								 
							 
							
							
								isHidden: true
							 
						 
					
						
							
								
									
										
										
										
											2019-11-04 21:01:05 -06:00 
										
									 
								 
							 
							
								
							 
							
								 
							 
							
							
								---
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								## Description
 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								< section  id = 'description' > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								On to the next building! Create a new variable called `--window-color3`  in `:root`  and give it a value of `#d98cb3` . This will be the secondary color for the pink buildings.
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								< / section > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								## Instructions
 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								< section  id = 'instructions' > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								< / section > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								## Tests
 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								< section  id = 'tests' > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								```yml
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								tests:
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								  -  text: test-text
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								    testString: const rootStyle = code.match(/:root\s*{[\s\S]+?[^}]}/g)[0]; assert(/--window-color3\s*:\s*#d98cb3 \s*(;|})/g.test(rootStyle));
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								```
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								< / section > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								## Challenge Seed
 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								< section  id = 'challengeSeed' > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								< div  id = 'html-seed' > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								```html
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								<!DOCTYPE html> 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								< html >     
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								  < head > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								    < title > freeCodeCamp Skyline Project< / title > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								    < style > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      :root {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        --building-color1: #aa80ff ;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        --building-color2: #66cc99 ;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        --building-color3: #cc6699 ;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        --building-color4: #538cc6 ;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        --window-color1: black;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        --window-color2: #8cd9b3 ;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      *  {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        border: 1px solid black;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        box-sizing: border-box;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      body {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        height: 100vh;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        margin: 0;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        overflow: hidden;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      .background-buildings, .foreground-buildings {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        width: 100%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        height: 100%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        display: flex;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        align-items: flex-end;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        justify-content: space-evenly;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        position: absolute;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        top: 0;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      /* BACKGROUND BUILDINGS - "bb" stands for "background building" */
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      .bb1 {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        width: 10%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        height: 70%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        display: flex;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        flex-direction: column;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        align-items: center;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      .bb1a {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        width: 70%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								  
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      .bb1b {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        width: 80%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								  
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      .bb1c {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        width: 90%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      .bb1d {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        width: 100%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        height: 70%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        background: linear-gradient(
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								            var(--building-color1) 50%,
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								            var(--window-color1)
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								          );
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      .bb1-window {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        height: 10%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        background: linear-gradient(
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								            var(--building-color1),
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								            var(--window-color1)
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								          );
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      .bb2 {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        width: 10%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        height: 50%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      .bb2a {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        border-bottom: 5vh solid var(--building-color2);
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        border-left: 5vw solid transparent;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        border-right: 5vw solid transparent;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      .bb2b {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        width: 100%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        height: 100%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        background: repeating-linear-gradient(
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								            var(--building-color2),
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								            var(--building-color2) 6%,
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								            var(--window-color2) 6%,
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								            var(--window-color2) 9%
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								          );
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      .bb3 {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        width: 10%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        height: 55%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        background-color: var(--building-color3);
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      .bb4 {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        width: 11%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        height: 58%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        background-color: var(--building-color4);
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      /* FOREGROUND BUILDINGS - "fb" stands for "foreground building" */
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      .fb1 {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        width: 10%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        height: 60%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        background-color: var(--building-color4);
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      .fb2 {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        width: 10%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        height: 40%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        background-color: var(--building-color3);
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      .fb3 {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        width: 10%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        height: 35%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        background-color: var(--building-color1);
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								  
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      .fb4 {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        width: 8%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        height: 45%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        background-color: var(--building-color1);
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        position: relative;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        left: 10%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      .fb5 {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        width: 10%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        height: 33%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        background-color: var(--building-color2);
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        position: relative;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        right: 10%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      .fb6 {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        width: 9%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        height: 38%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        background-color: var(--building-color3);
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								    < / style > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								  < / head > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								  < body > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								    < div  class = "background-buildings" > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div  class = "bb1" > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        < div  class = "bb1a bb1-window" > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        < div  class = "bb1b bb1-window" > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        < div  class = "bb1c bb1-window" > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        < div  class = "bb1d" > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div  class = "bb2" > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        < div  class = "bb2a" > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        < div  class = "bb2b" > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div  class = "bb3" > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div  class = "bb4" > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								    < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								    < div  class = "foreground-buildings" > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div  class = "fb1" > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div  class = "fb2" > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div  class = "fb3" > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div  class = "fb4" > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div  class = "fb5" > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div  class = "fb6" > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								    < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								  < / body > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								< / html > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								```
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								< / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								< / section > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								## Solution
 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								< section  id = 'solution' > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								```html
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								<!DOCTYPE html> 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								< html >     
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								  < head > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								    < title > freeCodeCamp Skyline Project< / title > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								    < style > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      :root {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        --building-color1: #aa80ff ;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        --building-color2: #66cc99 ;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        --building-color3: #cc6699 ;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        --building-color4: #538cc6 ;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        --window-color1: black;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        --window-color2: #8cd9b3 ;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        --window-color3: #d98cb3 ;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      *  {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        border: 1px solid black;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        box-sizing: border-box;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      body {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        height: 100vh;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        margin: 0;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        overflow: hidden;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      .background-buildings, .foreground-buildings {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        width: 100%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        height: 100%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        display: flex;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        align-items: flex-end;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        justify-content: space-evenly;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        position: absolute;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        top: 0;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      /* BACKGROUND BUILDINGS - "bb" stands for "background building" */
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      .bb1 {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        width: 10%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        height: 70%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        display: flex;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        flex-direction: column;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        align-items: center;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      .bb1a {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        width: 70%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								  
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      .bb1b {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        width: 80%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								  
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      .bb1c {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        width: 90%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      .bb1d {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        width: 100%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        height: 70%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        background: linear-gradient(
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								            var(--building-color1) 50%,
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								            var(--window-color1)
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								          );
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      .bb1-window {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        height: 10%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        background: linear-gradient(
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								            var(--building-color1),
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								            var(--window-color1)
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								          );
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      .bb2 {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        width: 10%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        height: 50%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      .bb2a {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        border-bottom: 5vh solid var(--building-color2);
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        border-left: 5vw solid transparent;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        border-right: 5vw solid transparent;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      .bb2b {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        width: 100%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        height: 100%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        background: repeating-linear-gradient(
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								            var(--building-color2),
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								            var(--building-color2) 6%,
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								            var(--window-color2) 6%,
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								            var(--window-color2) 9%
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								          );
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      .bb3 {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        width: 10%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        height: 55%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        background-color: var(--building-color3);
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      .bb4 {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        width: 11%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        height: 58%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        background-color: var(--building-color4);
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      /* FOREGROUND BUILDINGS - "fb" stands for "foreground building" */
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      .fb1 {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        width: 10%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        height: 60%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        background-color: var(--building-color4);
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      .fb2 {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        width: 10%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        height: 40%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        background-color: var(--building-color3);
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      .fb3 {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        width: 10%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        height: 35%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        background-color: var(--building-color1);
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								  
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      .fb4 {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        width: 8%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        height: 45%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        background-color: var(--building-color1);
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        position: relative;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        left: 10%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      .fb5 {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        width: 10%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        height: 33%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        background-color: var(--building-color2);
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        position: relative;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        right: 10%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      .fb6 {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        width: 9%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        height: 38%;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        background-color: var(--building-color3);
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								    < / style > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								  < / head > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								  < body > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								    < div  class = "background-buildings" > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div  class = "bb1" > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        < div  class = "bb1a bb1-window" > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        < div  class = "bb1b bb1-window" > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        < div  class = "bb1c bb1-window" > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        < div  class = "bb1d" > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div  class = "bb2" > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        < div  class = "bb2a" > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        < div  class = "bb2b" > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div  class = "bb3" > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div  class = "bb4" > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								    < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								    < div  class = "foreground-buildings" > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div  class = "fb1" > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div  class = "fb2" > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div  class = "fb3" > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div  class = "fb4" > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div  class = "fb5" > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div  class = "fb6" > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      < div > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								    < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								  < / body > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								< / html > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								```
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								< / section >