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How to implement adaptive grid through CSS Flex layout

王林
王林Original
2023-09-26 12:45:121016browse

如何通过Css Flex 弹性布局实现自适应网格

How to implement adaptive grid through CSS Flex elastic layout

Introduction:
In web design, grid layout is a very common layout method , which divides web pages into uniform grids and adjusts them adaptively on screens of different sizes. CSS Flex elastic layout provides a simple and powerful way to implement adaptive grid layout. This article will introduce how to use CSS Flex elastic layout to create an adaptive grid and provide specific code examples.

1. Basic steps:

  1. Create HTML structure: use the div element as a container and nest multiple sub-elements in it, that is, each grid item.
    The sample code is as follows:

    <div class="container">
      <div class="item">1</div>
      <div class="item">2</div>
      <div class="item">3</div>
      ...
    </div>
  2. Add CSS styles: Set the styles of containers and sub-elements to achieve flexible layout.
    The sample code is as follows:

    .container {
      display: flex;         // 设置为弹性容器
      flex-wrap: wrap;       // 设置换行
      justify-content: flex-start;   // 设置子元素左对齐
    }
    
    .item {
      flex: 0 0 25%;         // 设置子元素的占比,此处为四等分布局
      max-width: 25%;        // 设置最大宽度为占比的 25%
      min-width: 25%;        // 设置最小宽度为占比的 25%
      box-sizing: border-box;    // 设置宽度包含 padding 和 border
      padding: 10px;         // 设置内边距,加入间隙效果
    }
  3. Note: According to actual needs, the style can be adjusted and expanded, such as setting different grid item proportions, minimum width and maximum width, or adding other styles The effect is to meet the requirements of web design.

2. Sample code:
The following is a specific example that implements an adaptive grid layout containing 4 grid items.

HTML code:

<div class="container">
  <div class="item">1</div>
  <div class="item">2</div>
  <div class="item">3</div>
  <div class="item">4</div>
</div>

CSS code:

.container {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
}

.item {
  flex: 0 0 25%;
  max-width: 25%;
  min-width: 25%;
  box-sizing: border-box;
  padding: 10px;
  
  /* 添加一些样式效果 */
  background-color: #eee;
  border: 1px solid #ccc;
  text-align: center;
  margin-bottom: 10px;
}

3. Effect display:
Through the above code, we created a custom grid containing 4 grid items. Adapt to grid layout. Grid items automatically adjust to the width of their container to accommodate different screen sizes. At the same time, some style effects are added, such as background color, border, center alignment, etc.

The final effect is shown in the figure below:

[Image]

4. Summary:
By using CSS Flex elastic layout, we can quickly and easily implement custom Adapt to grid layout. With some simple styling of containers and child elements, the grid automatically adjusts across different screens. The above is a basic example. According to actual needs, we can make more adjustments and expansions to the layout.

I hope this article will help you understand how to implement adaptive grid layout through CSS Flex elastic layout. Thanks for reading!

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