ContextQMD
Back to Freecodecamp

Step 11

curriculum/challenges/english/blocks/learn-css-variables-by-building-a-city-skyline/5d822fd413a79914d39e98d3.md

latest1.8 KB
Original Source

--description--

Nest four div elements in the .bb1 container. Give them the classes bb1a, bb1b, bb1c, and bb1d in that order. This building will have four sections.

--hints--

You should create four new div elements.

js
assert.equal(document.querySelectorAll('div')?.length, 6);

You should give one of the new div elements a class of bb1a.

js
assert.exists(document.querySelector('div.bb1a'));

You should give one of the new div elements a class of bb1b.

js
assert.exists(document.querySelector('div.bb1b'));

You should give one of the new div elements a class of bb1c.

js
assert.exists(document.querySelector('div.bb1c'));

You should give one of the new div elements a class of bb1d.

js
assert.exists(document.querySelector('div.bb1d'));

You should place the new div elements in the correct order.

js
function __t(a, b) {
  return [...document.querySelector(a)?.nextElementSibling?.classList]?.includes(b);
}
assert(__t('div.bb1a','bb1b') && __t('div.bb1b','bb1c') && __t('div.bb1c','bb1d'));

You should place the new div elements within the .bb1 element.

js
assert.equal(document.querySelectorAll('div.bb1 > div')?.length, 4);

--seed--

--seed-contents--

html
<!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">
--fcc-editable-region--
      <div class="bb1"></div>
--fcc-editable-region--
    </div>
  </body>
</html>
css
* {
  border: 1px solid black;
  box-sizing: border-box;
}

body {
  height: 100vh;
  margin: 0;
  overflow: hidden;
}

.background-buildings {
  width: 100%;
  height: 100%;
}

.bb1 {
  width: 10%;
  height: 70%;
}