122 lines
3.8 KiB
Markdown
122 lines
3.8 KiB
Markdown
---
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id: bad87fee1348bd9aede08835
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title: 元素嵌套
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challengeType: 0
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videoUrl: 'https://scrimba.com/p/pVMPUv/cNW4kC3'
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forumTopicId: 18246
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dashedName: nest-many-elements-within-a-single-div-element
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---
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# --description--
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`div` 元素也叫內容劃分元素，是一個包裹其他元素的通用容器。
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它也是 HTML 中出現頻率最高的元素。
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和其他普通元素一樣，你可以用 `<div>` 來標記一個 `div` 元素的開始，用 `</div>` 來標記一個 `div` 元素的結束。
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# --instructions--
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將你的列表“貓喜歡的三件事”和“貓最討厭的三件事”放入同一個 `div` 元素中。
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提示：你可以在第一個 `<p>` 之前插入 `div` 開始標記，在 `</ol>` 之後插入 `div` 結束標籤。 這樣，所有的列表都會位於 `div` 之內。
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# --hints--
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所有的 `p` 元素都應嵌套在 `div` 元素中。
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```js
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assert($('div').children('p').length > 1);
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```
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所有的 `ul` 元素都應嵌套在 `div` 元素中。
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```js
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assert($('div').children('ul').length > 0);
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```
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所有的 `ol` 元素都應嵌套在 `div` 元素中。
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```js
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assert($('div').children('ol').length > 0);
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```
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`div` 元素應有結束標籤。
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```js
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assert(
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code.match(/<\/div>/g) &&
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code.match(/<\/div>/g).length === code.match(/<div>/g).length
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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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<h2>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://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
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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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<form action="https://www.freecatphotoapp.com/submit-cat-photo">
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<label for="indoor"><input id="indoor" type="radio" name="indoor-outdoor" value="indoor" checked> Indoor</label>
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<label for="outdoor"><input id="outdoor" type="radio" name="indoor-outdoor" value="outdoor"> Outdoor</label><br>
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<label for="loving"><input id="loving" type="checkbox" name="personality" value="loving" checked> Loving</label>
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<label for="lazy"><input id="lazy" type="checkbox" name="personality" value="lazy"> Lazy</label>
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<label for="energetic"><input id="energetic" type="checkbox" name="personality" value="energetic"> 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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# --solutions--
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```html
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<h2>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://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" 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="https://www.freecatphotoapp.com/submit-cat-photo">
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<label for="indoor"><input id="indoor" type="radio" name="indoor-outdoor" value="indoor" checked> Indoor</label>
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<label for="outdoor"><input id="outdoor" type="radio" name="indoor-outdoor" value="outdoor"> Outdoor</label><br>
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<label for="loving"><input id="loving" type="checkbox" name="personality" value="loving" checked> Loving</label>
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<label for="lazy"><input id="lazy" type="checkbox" name="personality" value="lazy"> Lazy</label>
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<label for="energetic"><input id="energetic" type="checkbox" name="personality" value="energetic"> 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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