144 lines
2.9 KiB
Markdown
144 lines
2.9 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: 'https://scrimba.com/p/pVaDAv/cd3PNfq'
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forumTopicId: 301106
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localeTitle: 在推文中使用 align-items 属性
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---
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## Description
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<section id='description'>
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上一个挑战介绍了<code>align-items</code>属性并给出了例子。可以对嵌入推文的一些元素使用这个属性，以调整其中 flex 子元素的位置。
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</section>
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## Instructions
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<section id='instructions'>
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在 header 的<code>.follow-btn</code>添加 CSS 属性<code>align-items</code>，把值设为 center。
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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: <code>.follow-btn</code>应有<code>align-items</code>属性，其值应为 <code>center</code>.
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testString: assert($('.follow-btn').css('align-items') == '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://freecodecamp.s3.amazonaws.com/quincy-twitter-photo.jpg" 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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```html
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// solution required
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```
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</section>
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