curriculum/challenges/english/blocks/learn-css-variables-by-building-a-city-skyline/5d822fd413a79914d39e98f8.md
Nest two new div elements within .bb2, give them the classes of bb2a and bb2b, in that order. These will be two sections for this building.
You should add two div elements to .bb2.
assert.equal(document.querySelector('div.bb2')?.children?.length, 2);
You should give the first div a class of bb2a.
assert.exists(document.querySelector('div.bb2a'));
You should give the second div a class of bb2b.
assert.exists(document.querySelector('div.bb2b'));
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>City Skyline</title>
<link href="styles.css" rel="stylesheet" />
</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>
--fcc-editable-region--
<div class="bb2"></div>
--fcc-editable-region--
<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>
:root {
--building-color1: #aa80ff;
--building-color2: #66cc99;
--building-color3: #cc6699;
--building-color4: #538cc6;
--window-color1: black;
}
* {
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%;
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 - "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);
}