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---
id: 5d822fd413a79914d39e98e7
title: Part 31
challengeType: 0
2021-01-13 03:31:00 +01:00
dashedName: part-31
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---
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# --description--
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Give the six new elements these `width` and `height` values: `10%` and `60%` to `fb1` , `10%` and `40%` to `fb2` , `10%` and `35%` to `fb3` , `8%` and `45%` to `fb4` , `10%` and `33%` to `fb5` , and `9%` and `38%` to `fb6` .
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# --hints--
test-text
```js
assert(
/\.fb1\s*{\s*(width\s*:\s*10%\s*;\s*height\s*:\s*60%\s*(;|})|height\s*:\s*60%\s*;\s*width\s*:\s*10%\s*(;|}))/g.test(
code
) & &
/\.fb2\s*{\s*(width\s*:\s*10%\s*;\s*height\s*:\s*40%\s*(;|})|height\s*:\s*40%\s*;\s*width\s*:\s*10%\s*(;|}))/g.test(
code
) & &
/\.fb3\s*{\s*(width\s*:\s*10%\s*;\s*height\s*:\s*35%\s*(;|})|height\s*:\s*35%\s*;\s*width\s*:\s*10%\s*(;|}))/g.test(
code
) & &
/\.fb4\s*{\s*(width\s*:\s*8%\s*;\s*height\s*:\s*45%\s*(;|})|height\s*:\s*45%\s*;\s*width\s*:\s*8%\s*(;|}))/g.test(
code
) & &
/\.fb5\s*{\s*(width\s*:\s*10%\s*;\s*height\s*:\s*33%\s*(;|})|height\s*:\s*33%\s*;\s*width\s*:\s*10%\s*(;|}))/g.test(
code
) & &
/\.fb6\s*{\s*(width\s*:\s*9%\s*;\s*height\s*:\s*38%\s*(;|})|height\s*:\s*38%\s*;\s*width\s*:\s*9%\s*(;|}))/g.test(
code
)
);
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```
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# --seed--
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## --seed-contents--
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```html
<!DOCTYPE html>
< html >
< head >
< title > freeCodeCamp Skyline Project< / title >
< style >
:root {
--building-color1: #aa80ff ;
--building-color2: #66cc99 ;
--building-color3: #cc6699 ;
--building-color4: #538cc6 ;
}
* {
border: 1px solid black;
box-sizing: border-box;
}
body {
height: 100vh;
margin: 0;
overflow: hidden;
}
.background-buildings {
width: 100%;
height: 100%;
display: flex;
align-items: flex-end;
justify-content: space-evenly;
}
.bb1 {
width: 10%;
height: 70%;
display: flex;
flex-direction: column;
align-items: center;
}
.bb1a {
width: 70%;
height: 10%;
background-color: var(--building-color1);
}
.bb1b {
width: 80%;
height: 10%;
background-color: var(--building-color1);
}
.bb1c {
width: 90%;
height: 10%;
background-color: var(--building-color1);
}
.bb1d {
width: 100%;
height: 70%;
background-color: var(--building-color1);
}
.bb2 {
width: 10%;
height: 50%;
background-color: var(--building-color2);
}
.bb3 {
width: 10%;
height: 55%;
background-color: var(--building-color3);
}
.bb4 {
width: 11%;
height: 58%;
background-color: var(--building-color4);
}
.foreground-buildings {
width: 100%;
height: 100%;
position: absolute;
top: 0;
}
< / style >
< / head >
< body >
< div class = "background-buildings" >
< div > < / div >
< div > < / div >
< div class = "bb1" >
< div class = "bb1a" > < / div >
< div class = "bb1b" > < / div >
< div class = "bb1c" > < / div >
< div class = "bb1d" > < / div >
< / div >
< div class = "bb2" > < / div >
< div class = "bb3" > < / div >
< div > < / div >
< div class = "bb4" > < / div >
< div > < / div >
< div > < / div >
< / div >
< div class = "foreground-buildings" >
< div class = "fb1" > < / div >
< div class = "fb2" > < / div >
< div class = "fb3" > < / div >
< div class = "fb4" > < / div >
< div class = "fb5" > < / div >
< div class = "fb6" > < / div >
< / div >
< / body >
< / html >
```
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# --solutions--
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```html
<!DOCTYPE html>
< html >
< head >
< title > freeCodeCamp Skyline Project< / title >
< style >
:root {
--building-color1: #aa80ff ;
--building-color2: #66cc99 ;
--building-color3: #cc6699 ;
--building-color4: #538cc6 ;
}
* {
border: 1px solid black;
box-sizing: border-box;
}
body {
height: 100vh;
margin: 0;
overflow: hidden;
}
.background-buildings {
width: 100%;
height: 100%;
display: flex;
align-items: flex-end;
justify-content: space-evenly;
}
.bb1 {
width: 10%;
height: 70%;
display: flex;
flex-direction: column;
align-items: center;
}
.bb1a {
width: 70%;
height: 10%;
background-color: var(--building-color1);
}
.bb1b {
width: 80%;
height: 10%;
background-color: var(--building-color1);
}
.bb1c {
width: 90%;
height: 10%;
background-color: var(--building-color1);
}
.bb1d {
width: 100%;
height: 70%;
background-color: var(--building-color1);
}
.bb2 {
width: 10%;
height: 50%;
background-color: var(--building-color2);
}
.bb3 {
width: 10%;
height: 55%;
background-color: var(--building-color3);
}
.bb4 {
width: 11%;
height: 58%;
background-color: var(--building-color4);
}
.foreground-buildings {
width: 100%;
height: 100%;
position: absolute;
top: 0;
}
.fb1 {
width: 10%;
height: 60%;
}
.fb2 {
width: 10%;
height: 40%;
}
.fb3 {
width: 10%;
height: 35%;
}
.fb4 {
width: 8%;
height: 45%;
}
.fb5 {
width: 10%;
height: 33%;
}
.fb6 {
width: 9%;
height: 38%;
}
< / style >
< / head >
< body >
< div class = "background-buildings" >
< div > < / div >
< div > < / div >
< div class = "bb1" >
< div class = "bb1a" > < / div >
< div class = "bb1b" > < / div >
< div class = "bb1c" > < / div >
< div class = "bb1d" > < / div >
< / div >
< div class = "bb2" > < / div >
< div class = "bb3" > < / div >
< div > < / div >
< div class = "bb4" > < / div >
< div > < / div >
< div > < / div >
< / div >
< div class = "foreground-buildings" >
< div class = "fb1" > < / div >
< div class = "fb2" > < / div >
< div class = "fb3" > < / div >
< div class = "fb4" > < / div >
< div class = "fb5" > < / div >
< div class = "fb6" > < / div >
< / div >
< / body >
< / html >
```