116 lines
2.6 KiB
Markdown
116 lines
2.6 KiB
Markdown
---
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id: 587d7791367417b2b2512ab4
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title: 使用 width 属性调整元素的宽度
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challengeType: 0
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videoUrl: 'https://scrimba.com/c/cvVLPtN'
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forumTopicId: 301039
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dashedName: adjust-the-width-of-an-element-using-the-width-property
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---
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# --description--
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你可以使用 CSS 里的 `width` 属性来指定元素的宽度。 属性值可以是相对单位（比如 `em`），绝对单位（比如 `px`），或者包含块（父元素）宽度的百分比。 下面这段代码可以把图片的宽度设置为 220px：
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```css
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img {
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width: 220px;
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}
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```
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# --instructions--
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为卡片元素添加 `width` 属性，并将它的宽度设置为 245px。 使用 `fullCard` class 来选择卡片元素。
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# --hints--
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应使用 `fullCard` class 选择器将卡片的 `width` 属性值设置为 `245px`。
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```js
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const fullCard = code.match(/\.fullCard\s*{[\s\S]+?[^}]}/g);
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assert(
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fullCard &&
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/width\s*:\s*245px\s*(;|})/gi.test(fullCard[0]) &&
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$('.fullCard').css('maxWidth') === 'none'
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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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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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}
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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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