freeCodeCamp/curriculum/challenges/chinese/01-responsive-web-design/css-flexbox/add-flex-superpowers-to-the-tweet-embed.md

---
id: 587d78ab367417b2b2512af1
title: 在推文中添加弹性盒子布局
challengeType: 0
videoUrl: 'https://scrimba.com/p/pVaDAv/c9W7MhM'
forumTopicId: 301100
dashedName: add-flex-superpowers-to-the-tweet-embed
---

# --description--

以右边的嵌入推文为例， 一些元素换一个布局方式或许更好看。 上一个挑战演示了 `display: flex`， 现在你需要把它添加到推文内嵌的多个组件中，调整它们的位置。

# --instructions--

请为下列项目添加 CSS 属性 `display: flex`。 注意，以下 CSS 选择器已为你写好：

`header`、header 中的 `.profile-name`、header 中的 `.follow-btn`、header 中的 `h3` 和 `h4`、`footer` 以及 footer 中的 `.stats`。

# --hints--

`.follow-btn` 应在页面上呈现。 请关闭广告拦截器等任何扩展。

```js
assert($('.follow-btn').length > 0 && $('.follow-btn').css('display') !== 'none');
```

`header` 的 `display` 属性值应为 `flex`。

```js
assert($('header').css('display') == 'flex');
```

`footer` 的 `display` 属性值应为 `flex`。

```js
assert($('footer').css('display') == 'flex');
```

`h3` 的 `display` 属性值应为 `flex`。

```js
assert($('h3').css('display') == 'flex');
```

`h4` 的 `display` 属性值应为 `flex`。

```js
assert($('h4').css('display') == 'flex');
```

`.profile-name` 的 `display` 属性值应为 `flex`。

```js
assert($('.profile-name').css('display') == 'flex');
```

`.follow-btn` 的 `display` 属性值应为 `flex`。

```js
assert($('.follow-btn').css('display') == 'flex');
```

`.stats` 的 `display` 属性值应为 `flex`。

```js
assert($('.stats').css('display') == 'flex');
```

# --seed--

## --seed-contents--

```html
<style>
  body {
    font-family: Arial, sans-serif;
  }
  header {

  }
  header .profile-thumbnail {
    width: 50px;
    height: 50px;
    border-radius: 4px;
  }
  header .profile-name {

    margin-left: 10px;
  }
  header .follow-btn {

    margin: 0 0 0 auto;
  }
  header .follow-btn button {
    border: 0;
    border-radius: 3px;
    padding: 5px;
  }
  header h3, header h4 {

    margin: 0;
  }
  #inner p {
    margin-bottom: 10px;
    font-size: 20px;
  }
  #inner hr {
    margin: 20px 0;
    border-style: solid;
    opacity: 0.1;
  }
  footer {

  }
  footer .stats {

    font-size: 15px;
  }
  footer .stats strong {
    font-size: 18px;
  }
  footer .stats .likes {
    margin-left: 10px;
  }
  footer .cta {
    margin-left: auto;
  }
  footer .cta button {
    border: 0;
    background: transparent;
  }
</style>
<header>
  <img src="https://freecodecamp.s3.amazonaws.com/quincy-twitter-photo.jpg" alt="Quincy Larson's profile picture" class="profile-thumbnail">
  <div class="profile-name">
    <h3>Quincy Larson</h3>
    <h4>@ossia</h4>
  </div>
  <div class="follow-btn">
    <button>Follow</button>
  </div>
</header>
<div id="inner">
  <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>
  <span class="date">1:32 PM - 12 Jan 2018</span>
  <hr>
</div>
<footer>
  <div class="stats">
    <div class="Retweets">
      <strong>107</strong> Retweets
    </div>
    <div class="likes">
      <strong>431</strong> Likes
    </div>
  </div>
  <div class="cta">
    <button class="share-btn">Share</button>
    <button class="retweet-btn">Retweet</button>
    <button class="like-btn">Like</button>
  </div>
</footer>
```

# --solutions--

```html
<style>
  body {
    font-family: Arial, sans-serif;
  }
  header {
   display: flex;
  }
  header .profile-thumbnail {
    width: 50px;
    height: 50px;
    border-radius: 4px;
  }
  header .profile-name {
    display: flex;
    margin-left: 10px;
  }
  header .follow-btn {
    display: flex;
    margin: 0 0 0 auto;
  }
  header .follow-btn button {
    border: 0;
    border-radius: 3px;
    padding: 5px;
  }
  header h3, header h4 {
    display: flex;
    margin: 0;
  }
  #inner p {
    margin-bottom: 10px;
    font-size: 20px;
  }
  #inner hr {
    margin: 20px 0;
    border-style: solid;
    opacity: 0.1;
  }
  footer {
    display: flex;
  }
  footer .stats {
    display: flex;
    font-size: 15px;
  }
  footer .stats strong {
    font-size: 18px;
  }
  footer .stats .likes {
    margin-left: 10px;
  }
  footer .cta {
    margin-left: auto;
  }
  footer .cta button {
    border: 0;
    background: transparent;
  }
</style>
<header>
  <img src="https://freecodecamp.s3.amazonaws.com/quincy-twitter-photo.jpg" alt="Quincy Larson's profile picture" class="profile-thumbnail">
  <div class="profile-name">
    <h3>Quincy Larson</h3>
    <h4>@ossia</h4>
  </div>
  <div class="follow-btn">
    <button>Follow</button>
  </div>
</header>
<div id="inner">
  <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>
  <span class="date">1:32 PM - 12 Jan 2018</span>
  <hr>
</div>
<footer>
  <div class="stats">
    <div class="Retweets">
      <strong>107</strong> Retweets
    </div>
    <div class="likes">
      <strong>431</strong> Likes
    </div>
  </div>
  <div class="cta">
    <button class="share-btn">Share</button>
    <button class="retweet-btn">Retweet</button>
    <button class="like-btn">Like</button>
  </div>
</footer>
```