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What are the properties used for hiding in CSS

青灯夜游

Release： 2022-05-18 17:59:05

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Three attributes used for hiding: 1. visibility, when the attribute value is "hidden", the hidden element itself can occupy the position; 2. display, when the value is "none", it does not occupy the position Hide the element itself; 3. overflow, when the value is "hidden", the content beyond the box can be hidden.

What are the properties used for hiding in CSS

The operating environment of this tutorial: Windows 7 system, CSS3&&HTML5 version, Dell G3 computer.

Attributes and values used for hiding in CSS

visibility:hidden Hidden elements itself, and occupies a position in the web page
display:none Hides the element itself, and occupies no position in the web page (commonly used)
overflow:hidden Hide the content beyond the box (the content beyond the box is hidden but does not occupy space)

Example 1: display: none does not occupy the position, hides

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>隐藏元素</title>
    <style>
      * {
        /* 去除页面默认的边距 */
        padding: 0;
        margin: 0;
      }
      .box1 {
        width: 200px;
        height: 200px;
        float: left;
        background-color: orange;
        margin: 50px 50px;
        /* 默认显示，不隐藏 */
        display: block;
      }
      /* 鼠标悬停在box1隐藏box1 */
      .box1:hover {
        display: none;
      }
      .box4 {
        float: left;
        width: 200px;
        height: 200px;
        background-color: pink;
        margin: 50px 50px;
      }
    </style>
  </head>
  <body>
    <div>
      <p>box1</p>
      <p>display: none;</p>
    </div>

    <div>普通</div>
  </body>
</html>

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What are the properties used for hiding in CSS

Example 2: visibility: hidden, occupies the position, hides

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>隐藏元素</title>
    <style>
      * {
        /* 去除页面默认的边距 */
        padding: 0;
        margin: 0;
      }

      .box2 {
        float: left;
        width: 200px;
        height: 200px;
        background-color: skyblue;
        margin: 50px 50px;
        
      }
   /* 鼠标悬停在box2隐藏box2 */
  .box2:hover {
  visibility: hidden;
  }
      .box4 {
        float: left;
        width: 200px;
        height: 200px;
        background-color: pink;
        margin: 50px 50px;
      }
    </style>
  </head>
  <body>

    <div>
      <p>box2</p>
      <p>
        visibility: hidden; <br />
      </p>
    </div>

    <div>普通</div>
  </body>
</html>

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What are the properties used for hiding in CSS

Example 3: overflow:hidden hides the content beyond the box

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>隐藏元素</title>
    <style>
      * {
        /* 去除页面默认的边距 */
        padding: 0;
        margin: 0;
      }
      .box3 {
        float: left;
        width: 200px;
        height: 200px;
        background-color: pink;
        margin: 50px 50px;
 
       
      }
      .box4 {
        float: left;
        width: 200px;
        height: 200px;
        background-color: pink;
        margin: 50px 50px;
overflow: hidden;
      }
    </style>
  </head>
  <body>
    <div>
      <p>box3</p>
      <p>
        内容超出了
      </p>
      <p>我敲多行~</p>
      <p>我敲多行~</p>
      <p>我敲多行~</p>
      <p>我敲多行~</p>
      <p>我敲多行~</p>
      <p>我敲多行~</p>
      <p>我敲多行~</p>
      <p>我敲多行~</p>
      <p>我敲多行~</p>
      <p>我敲多行~</p>
      <p>我敲多行~</p>
      <p>我敲多行~</p>
      <p>我敲多行~</p>
      <p>我敲多行~</p>
    </div>
    <div>
<p>box4</p>
<p>
  overflow: hidden;<br />内容超出,超出部分隐藏
</p>
<p>我敲多行~</p>
<p>我敲多行~</p>
<p>我敲多行~</p>
<p>我敲多行~</p>
<p>我敲多行~</p>
<p>我敲多行~</p>
<p>我敲多行~</p>
<p>我敲多行~</p>
<p>我敲多行~</p>
<p>我敲多行~</p>
<p>我敲多行~</p>
<p>我敲多行~</p>
<p>我敲多行~</p>
<p>我敲多行~</p>
</div>
  </body>
</html>

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What are the properties used for hiding in CSS

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