119 lines
2.5 KiB
Markdown
119 lines
2.5 KiB
Markdown
---
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id: 587d7791367417b2b2512ab5
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title: 使用 height 属性调整元素的宽度
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challengeType: 0
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videoUrl: 'https://scrimba.com/c/cEDaDTN'
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forumTopicId: 301034
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dashedName: adjust-the-height-of-an-element-using-the-height-property
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---
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# --description--
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和 `width` 属性类似，你可以使用 CSS 里面的 `height` 属性来指定元素的高度。 下面这段代码可以把图片的高度设置为 20px：
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```css
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img {
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height: 20px;
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}
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```
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# --instructions--
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给 `h4` 标签添加 `height` 属性并将属性值设置为 25px。
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**注意：** 可能需要将浏览器的缩放比调整为 100% 才能通过这一挑战。
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# --hints--
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`h4` 的 `height` 属性值应为 25px。
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```js
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assert(
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Math.round(document.querySelector('h4').getBoundingClientRect().height) ===
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25 &&
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/h4{\S*height:25px(;\S*}|})/.test($('style').text().replace(/\s/g, ''))
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);
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```
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# --seed--
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## --seed-contents--
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```html
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<style>
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h4 {
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text-align: center;
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}
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p {
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text-align: justify;
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}
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.links {
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margin-right: 20px;
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text-align: left;
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}
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.fullCard {
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width: 245px;
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border: 1px solid #ccc;
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border-radius: 5px;
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margin: 10px 5px;
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padding: 4px;
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}
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.cardContent {
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padding: 10px;
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}
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</style>
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<div class="fullCard">
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<div class="cardContent">
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<div class="cardText">
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<h4>Google</h4>
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<p>Google was founded by Larry Page and Sergey Brin while they were Ph.D. students at Stanford University.</p>
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</div>
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<div class="cardLinks">
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<a href="https://en.wikipedia.org/wiki/Larry_Page" target="_blank" class="links">Larry Page</a>
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<a href="https://en.wikipedia.org/wiki/Sergey_Brin" target="_blank" class="links">Sergey Brin</a>
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</div>
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</div>
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</div>
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```
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# --solutions--
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```html
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<style>
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h4 {
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text-align: center;
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height: 25px;
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}
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p {
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text-align: justify;
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}
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.links {
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margin-right: 20px;
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text-align: left;
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}
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.fullCard {
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width: 245px;
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border: 1px solid #ccc;
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border-radius: 5px;
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margin: 10px 5px;
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padding: 4px;
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}
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.cardContent {
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padding: 10px;
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}
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</style>
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<div class="fullCard">
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<div class="cardContent">
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<div class="cardText">
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<h4>Google</h4>
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<p>Google was founded by Larry Page and Sergey Brin while they were Ph.D. students at Stanford University.</p>
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</div>
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<div class="cardLinks">
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<a href="https://en.wikipedia.org/wiki/Larry_Page" target="_blank" class="links">Larry Page</a>
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<a href="https://en.wikipedia.org/wiki/Sergey_Brin" target="_blank" class="links">Sergey Brin</a>
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</div>
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</div>
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</div>
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```
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