140 lines
3.0 KiB
Markdown
140 lines
3.0 KiB
Markdown
---
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id: 587d78ad367417b2b2512af9
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title: Use the align-items Property in the Tweet Embed
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challengeType: 0
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videoUrl: ''
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localeTitle: 使用Tweet Embed中的align-items属性
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---
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## Description
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<section id="description">最后一个挑战引入了<code>align-items</code>属性并举了一个例子。此属性可应用于一些tweet嵌入元素，以对齐其中的flex项。 </section>
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## Instructions
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<section id="instructions">将CSS属性<code>align-items</code>添加到标题的<code>.follow-btn</code>元素中。将值设置为居中。 </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: <code>.follow-btn</code>元素应将<code>align-items</code>属性设置为center的值。
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testString: 'assert($(".follow-btn").css("align-items") == "center", "The <code>.follow-btn</code> element should have the <code>align-items</code> property set to a value of center.");'
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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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body {
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font-family: Arial, sans-serif;
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}
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header, footer {
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display: flex;
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flex-direction: row;
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}
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header .profile-thumbnail {
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width: 50px;
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height: 50px;
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border-radius: 4px;
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}
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header .profile-name {
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display: flex;
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flex-direction: column;
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justify-content: center;
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margin-left: 10px;
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}
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header .follow-btn {
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display: flex;
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margin: 0 0 0 auto;
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}
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header .follow-btn button {
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border: 0;
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border-radius: 3px;
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padding: 5px;
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}
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header h3, header h4 {
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display: flex;
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margin: 0;
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}
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#inner p {
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margin-bottom: 10px;
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font-size: 20px;
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}
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#inner hr {
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margin: 20px 0;
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border-style: solid;
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opacity: 0.1;
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}
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footer .stats {
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display: flex;
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font-size: 15px;
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}
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footer .stats strong {
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font-size: 18px;
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}
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footer .stats .likes {
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margin-left: 10px;
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}
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footer .cta {
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margin-left: auto;
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}
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footer .cta button {
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border: 0;
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background: transparent;
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}
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</style>
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<header>
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<img src="https://pbs.twimg.com/profile_images/378800000147359764/54dc9a5c34e912f34db8662d53d16a39_400x400.png" alt="Quincy Larson's profile picture" class="profile-thumbnail">
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<div class="profile-name">
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<h3>Quincy Larson</h3>
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<h4>@ossia</h4>
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</div>
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<div class="follow-btn">
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<button>Follow</button>
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</div>
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</header>
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<div id="inner">
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<p>I meet so many people who are in search of that one trick that will help them work smart. Even if you work smart, you still have to work hard.</p>
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<span class="date">1:32 PM - 12 Jan 2018</span>
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<hr>
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</div>
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<footer>
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<div class="stats">
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<div class="Retweets">
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<strong>107</strong> Retweets
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</div>
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<div class="likes">
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<strong>431</strong> Likes
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</div>
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</div>
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<div class="cta">
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<button class="share-btn">Share</button>
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<button class="retweet-btn">Retweet</button>
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<button class="like-btn">Like</button>
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</div>
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</footer>
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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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