109 lines
3.8 KiB
Markdown
109 lines
3.8 KiB
Markdown
---
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id: bad87fee1348bd9bedf08813
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title: Add Borders Around Your Elements
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challengeType: 0
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guideUrl: 'https://chinese.freecodecamp.org/guide/certificates/add-borders-around-your-elements'
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videoUrl: ''
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localeTitle: 添加元素周围的边框
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---
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## Description
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<section id="description"> CSS边框具有<code>style</code> ， <code>color</code>和<code>width</code>等属性。例如，如果我们想要在HTML元素周围创建一个红色的5像素边框，我们可以使用此类： <blockquote> <风格> <br> .thin-red-border { <br>边框颜色：红色; <br> border-width：5px; <br>边框式：坚固; <br> } <br> </样式> </blockquote></section>
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## Instructions
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<section id="instructions">创建一个名为<code>thick-green-border</code> 。这个类应该在HTML元素周围添加一个10px的实心绿色边框。将课程应用于您的猫照片。请记住，您可以使用其<code>class</code>属性将多个类应用于元素，方法是使用空格分隔每个类名。例如： <code><img class="class1 class2"></code> </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: 您的<code>img</code>元素应该具有<code>smaller-image</code>类。
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testString: 'assert($("img").hasClass("smaller-image"), "Your <code>img</code> element should have the class <code>smaller-image</code>.");'
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- text: 你的<code>img</code>元素应该有类<code>thick-green-border</code> 。
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testString: 'assert($("img").hasClass("thick-green-border"), "Your <code>img</code> element should have the class <code>thick-green-border</code>.");'
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- text: 为图像提供<code>10px</code>的边框宽度。
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testString: 'assert($("img").hasClass("thick-green-border") && parseInt($("img").css("border-top-width"), 10) >= 8 && parseInt($("img").css("border-top-width"), 10) <= 12, "Give your image a border width of <code>10px</code>.");'
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- text: 为您的图像提供<code>solid</code>的边框样式。
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testString: 'assert($("img").css("border-right-style") === "solid", "Give your image a border style of <code>solid</code>.");'
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- text: <code>img</code>元素周围的边框应为绿色。
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testString: 'assert($("img").css("border-left-color") === "rgb(0, 128, 0)", "The border around your <code>img</code> element should be green.");'
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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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<link href="https://fonts.googleapis.com/css?family=Lobster" rel="stylesheet" type="text/css">
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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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h2 {
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font-family: Lobster, monospace;
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}
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p {
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font-size: 16px;
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font-family: monospace;
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}
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.smaller-image {
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width: 100px;
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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 class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
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<a href="#"><img class="smaller-image" 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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