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How to center child elements in css3

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2021-12-15 17:19:223420browse

Method: 1. Use the "parent element {display:flex}" statement to set the parent element to a flexible layout; 2. Use the "parent element {align-items:center}" statement to vertically center the child element; 3. , use the "parent element {justify-content:center}" statement to center the child element horizontally.

How to center child elements in css3

The operating environment of this tutorial: Windows 10 system, CSS3&&HTML5 version, Dell G3 computer.

How to set the child element to be centered in css3

We can set the parent element to a flexible layout through the display:flex style, which is used for the parent element. Elements provide maximum flexibility.

align-items property defines the alignment of flex items in the direction of the cross axis (vertical axis) of the current row of the flex container.

justify-content is used to set or retrieve the alignment of the flexible box element in the main axis (horizontal axis) direction.

The example is as follows:

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>盒子完美居中</title>
    <style>
      .con {
        width: 300px;
        height: 300px;
        border: 1px solid red;
        margin: 100px auto;
        display: flex;
        justify-content: center; /*水平方向的居中*/
        align-items: center; /*垂直方向的居中*/
      }
      .box {
        width: 100px;
        height: 100px;
        background-color: pink;
      }
    </style>
  </head>
  <body>
    <div class="con">
      <div class="box"></div>
    </div>
  </body>
</html>

Output result:

How to center child elements in css3

(Learning video sharing: css video tutorial)

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