freeCodeCamp/curriculum/challenges/chinese-traditional/14-responsive-web-design-22/learn-the-css-box-model-by-.../60a3e3396c7b40068ad69987.md

1.5 KiB

id title challengeType dashedName
60a3e3396c7b40068ad69987 步驟 29 0 step-29

--description--

在調整元素大小時,不必總是使用像素。

創建一個新規則 .three,並將其 width 設置爲 91%

--hints--

應該使用 .three 選擇器。

const hasThree = new __helpers.CSSHelp(document).getStyle('.three');
assert(hasThree);

應該將 width 屬性設置爲 91%

const hasWidth = new __helpers.CSSHelp(document).getCSSRules().some(x => x.style.width === '91%');
assert(hasWidth);

.three 元素的 width 值應爲 91%

const threeWidth = new __helpers.CSSHelp(document).getStyle('.three')?.getPropertyValue('width');
assert(threeWidth === '91%');

--seed--

--seed-contents--

.canvas {
  width: 500px;
  height: 600px;
  background-color: #4d0f00;
  overflow: hidden;
}

.frame {
  border: 50px solid black;
  width: 500px;
  padding: 50px;
  margin: 20px auto;
}

.one {
  width: 425px;
  height: 150px;
  background-color: #efb762;
  margin: 20px auto;
}

.two {
  width: 475px;
  height: 200px;
  background-color: #8f0401;
  margin: auto;
}

--fcc-editable-region--

--fcc-editable-region--

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8">
    <title>Rothko Painting</title>
    <link href="./styles.css" rel="stylesheet">
  </head>
  <body>
    <div class="frame">
      <div class="canvas">
        <div class="one"></div>
        <div class="two"></div>
        <div class="three"></div>
      </div>
    </div>
  </body>
</html>