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curriculum/challenges/english/blocks/learn-css-variables-by-building-a-city-skyline/5d822fd413a79914d39e98d1.md

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--description--

Give your .background-buildings element a width and height of 100% to make it the full width and height of its parent, the body.

--hints--

You should use the background-buildings class to select the correct element.

js
assert.exists(new __helpers.CSSHelp(document).getStyle('.background-buildings'));

Your .background-buildings element should have a width of 100%.

js
assert.equal(new __helpers.CSSHelp(document).getStyle('.background-buildings')?.width, '100%');

Your .background-buildings element should have a height of 100%.

js
assert.equal(new __helpers.CSSHelp(document).getStyle('.background-buildings')?.height, '100%');

--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"></div>
  </body>
</html>
css
* {
  border: 1px solid black;
  box-sizing: border-box;
}

body {
  height: 100vh;
  margin: 0;
  overflow: hidden;
}
--fcc-editable-region--


--fcc-editable-region--