2019-11-04 21:01:05 -06:00 
										
									 
								 
							 
							
								
							 
							
								 
							 
							
							
								---
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								id: 5d822fd413a79914d39e98cf
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								title: Part 7
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								challengeType: 0
							 
						 
					
						
							
								
									
										
										
										
											2021-01-13 03:31:00 +01:00 
										
									 
								 
							 
							
								
									
										 
									 
								
							 
							
								 
							 
							
							
								dashedName: part-7
							 
						 
					
						
							
								
									
										
										
										
											2019-11-04 21:01:05 -06:00 
										
									 
								 
							 
							
								
							 
							
								 
							 
							
							
								---
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
									
										
										
										
											2020-11-27 19:02:05 +01:00 
										
									 
								 
							 
							
								
									
										 
									 
								
							 
							
								 
							 
							
							
								# --description--
 
							 
						 
					
						
							
								
									
										
										
										
											2019-11-04 21:01:05 -06:00 
										
									 
								 
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								You can see the body, it's the horizontal line on your page; the box around it is the html element. Make your body fill the whole viewport by giving it a `height`  of `100vh` . Remove the default margin from the body by setting the `margin`  to `0` . Finally, set the `overflow`  property to `hidden`  to hide any scroll bars that appear when something extends past the viewport.
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
									
										
										
										
											2020-11-27 19:02:05 +01:00 
										
									 
								 
							 
							
								
									
										 
									 
								
							 
							
								 
							 
							
							
								# --hints--
 
							 
						 
					
						
							
								
									
										
										
										
											2019-11-04 21:01:05 -06:00 
										
									 
								 
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
									
										
										
										
											2020-11-27 19:02:05 +01:00 
										
									 
								 
							 
							
								
									
										 
									 
								
							 
							
								 
							 
							
							
								test-text
							 
						 
					
						
							
								
									
										
										
										
											2019-11-04 21:01:05 -06:00 
										
									 
								 
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
									
										
										
										
											2020-11-27 19:02:05 +01:00 
										
									 
								 
							 
							
								
									
										 
									 
								
							 
							
								 
							 
							
							
								```js
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								const body = code.match(/body\s*{[\s\S]+?[^}]}/g)[0];
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								assert(
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								  /height\s*:\s*100vh\s*(;|})/g.test(body) && 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								    /margin\s*:\s*(0|0px)\s*(;|})/g.test(body) && 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								    /overflow\s*:\s*hidden\s*(;|})/g.test(body)
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								);
							 
						 
					
						
							
								
									
										
										
										
											2019-11-04 21:01:05 -06:00 
										
									 
								 
							 
							
								
							 
							
								 
							 
							
							
								```
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
									
										
										
										
											2020-11-27 19:02:05 +01:00 
										
									 
								 
							 
							
								
									
										 
									 
								
							 
							
								 
							 
							
							
								# --seed--
 
							 
						 
					
						
							
								
									
										
										
										
											2019-11-04 21:01:05 -06:00 
										
									 
								 
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
									
										
										
										
											2020-11-27 19:02:05 +01:00 
										
									 
								 
							 
							
								
									
										 
									 
								
							 
							
								 
							 
							
							
								## --seed-contents--
 
							 
						 
					
						
							
								
									
										
										
										
											2019-11-04 21:01:05 -06:00 
										
									 
								 
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								```html
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								<!DOCTYPE html> 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								< html >     
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								  < head > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								    < title > freeCodeCamp Skyline Project< / title > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								    < style > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      *  {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        border: 1px solid black;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        box-sizing: border-box;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								    < / style > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								  < / head > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								  < body > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								  < / body > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								< / html > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								```
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
									
										
										
										
											2020-11-27 19:02:05 +01:00 
										
									 
								 
							 
							
								
									
										 
									 
								
							 
							
								 
							 
							
							
								# --solutions--
 
							 
						 
					
						
							
								
									
										
										
										
											2019-11-04 21:01:05 -06:00 
										
									 
								 
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								```html
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								<!DOCTYPE html> 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								< html >     
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								  < head > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								    < title > freeCodeCamp Skyline Project< / title > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								    < style > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      *  {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        border: 1px solid black;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        box-sizing: border-box;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      body {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        height: 100vh;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        margin: 0;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								        overflow: hidden;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								      }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								    < / style > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								  < / head > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								  < body > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								  < / body > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								< / html > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							 
							
							
								```