95 lines
2.8 KiB
Markdown
95 lines
2.8 KiB
Markdown
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---
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id: bad87fee1348bd9aefe08806
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title: Style Multiple Elements with a CSS Class
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challengeType: 0
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videoUrl: ''
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localeTitle: 使用CSS类设置多个元素的样式
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---
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## Description
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<section id="description">类允许您在多个HTML元素上使用相同的CSS样式。您可以通过将<code>red-text</code>类应用于第一个<code>p</code>元素来查看。 </section>
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## Instructions
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<section id="instructions">
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</section>
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## Tests
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<section id='tests'>
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```yml
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tests:
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- text: 你的<code>h2</code>元素应该是红色的。
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testString: 'assert($("h2").css("color") === "rgb(255, 0, 0)", "Your <code>h2</code> element should be red.");'
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- text: 你的<code>h2</code>元素应该有<code>red-text</code>类。
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testString: 'assert($("h2").hasClass("red-text"), "Your <code>h2</code> element should have the class <code>red-text</code>.");'
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- text: 你的第一个<code>p</code>元素应该是红色的。
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testString: 'assert($("p:eq(0)").css("color") === "rgb(255, 0, 0)", "Your first <code>p</code> element should be red.");'
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- text: 你的第二和第三个<code>p</code>元素不应该是红色的。
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testString: 'assert(!($("p:eq(1)").css("color") === "rgb(255, 0, 0)") && !($("p:eq(2)").css("color") === "rgb(255, 0, 0)"), "Your second and third <code>p</code> elements should not be red.");'
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- text: 你的第一个<code>p</code>元素应该有<code>red-text</code>类。
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testString: 'assert($("p:eq(0)").hasClass("red-text"), "Your first <code>p</code> element should have the class <code>red-text</code>.");'
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```
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</section>
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## Challenge Seed
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<section id='challengeSeed'>
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<div id='html-seed'>
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```html
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<style>
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.red-text {
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color: red;
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}
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</style>
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<h2 class="red-text">CatPhotoApp</h2>
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<main>
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<p>Click here to view more <a href="#">cat photos</a>.</p>
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<a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
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<div>
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<p>Things cats love:</p>
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<ul>
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<li>cat nip</li>
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<li>laser pointers</li>
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<li>lasagna</li>
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</ul>
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<p>Top 3 things cats hate:</p>
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<ol>
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<li>flea treatment</li>
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<li>thunder</li>
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<li>other cats</li>
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</ol>
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</div>
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<form action="/submit-cat-photo">
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<label><input type="radio" name="indoor-outdoor" checked> Indoor</label>
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<label><input type="radio" name="indoor-outdoor"> Outdoor</label><br>
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<label><input type="checkbox" name="personality" checked> Loving</label>
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<label><input type="checkbox" name="personality"> Lazy</label>
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<label><input type="checkbox" name="personality"> Energetic</label><br>
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<input type="text" placeholder="cat photo URL" required>
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<button type="submit">Submit</button>
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</form>
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</main>
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```
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</div>
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</section>
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## Solution
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<section id='solution'>
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```js
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// solution required
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```
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</section>
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