Detailed explanation of the application cases of CSS Flex elastic layout in social media websites

Detailed explanation of the application cases of CSS Flex elastic layout in social media websites

Introduction:
Social media websites play an important role in today's Internet era , they attract hundreds of millions of users with their rich content and diverse interactive features. When developing a social media website, page layout flexibility and adaptability are crucial. CSS Flex elastic layout is a powerful tool that can realize flexible page layout and adapt to the screen sizes of various devices. This article will introduce the application cases of CSS Flex elastic layout in social media websites and provide specific code examples.

1. Head navigation bar:
   In social media websites, the head navigation bar usually includes elements such as logo, search bar, message notification, user avatar, etc. Adaptive layout of these elements can be achieved using CSS Flex layout. The following is a sample code:

<div class="header">
  <div class="logo">Logo</div>
  <div class="search-bar">Search</div>
  <div class="notifications">Notifications</div>
  <div class="avatar">Avatar</div>
</div>

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo, .search-bar, .notifications, .avatar {
  margin: 10px;
}

2. Dynamic content list:
   Dynamic content list in social media websites usually consists of multiple cards, each card contains user avatar, user name , release time, dynamic content and other information. Using CSS Flex elastic layout can realize the adaptive layout of the card. Here is a sample code:

<div class="news-feed">
  <div class="card">
    <div class="avatar">Avatar</div>
    <div class="user-info">
      <div class="username">Username</div>
      <div class="post-time">Post Time</div>
    </div>
    <div class="content">Content</div>
  </div>
  <!-- 可以添加更多卡片 -->
</div>

.news-feed {
  display: flex;
  flex-direction: column;
}

.card {
  display: flex;
  align-items: center;
  padding: 10px;
  border: 1px solid #ccc;
  margin-bottom: 10px;
}

.avatar, .user-info, .content {
  margin-right: 10px;
}

.username, .post-time {
  font-weight: bold;
}

3. Image wall layout:
   Image walls in social media sites usually display pictures shared by users, and the pictures can be clicked to view more details. Using CSS Flex elastic layout can realize the adaptive grid layout of the picture wall. The following is a sample code:

<div class="image-wall">
  <div class="image">
    <img src="/static/imghwm/default1.png"  data-src="image1.jpg"  class="lazy" alt="Image 1">
  </div>
  <div class="image">
    <img src="/static/imghwm/default1.png"  data-src="image2.jpg"  class="lazy" alt="Image 2">
  </div>
  <!-- 可以添加更多图片 -->
</div>

.image-wall {
  display: flex;
  flex-wrap: wrap;
}

.image {
  flex: 0 0 25%; /* 每行显示四张图片 */
  padding: 10px;
}

img {
  width: 100%;
  height: auto;
}

Summary:
CSS Flex elastic layout is a powerful tool for implementing adaptive layout of social media websites, which can achieve flexible page layout and adapt to the screen sizes of different devices . This article provides specific code examples, taking the head navigation bar, dynamic content list, and picture wall layout as examples. By flexibly using CSS Flex layout, developers can easily build social media websites that are beautiful and adaptable to various devices.

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