CSS中visibility:hidden、display:none、opacity:0、rgba设置元素隐藏的区别

CSS教程 2025-08-27

共同点:

visibility:hidden、display:none、opacity:0三者都可以使元素隐藏

区别在于:

1、visibility:hidden 保留dom节点,元素在文档流中占据空间,不引起重排和回流;父元素设置该属性时,子元素同样会生效,但可以通过visibility:visible;修改子元素的显示效果;

2、display:none 不保留dom节点,元素直接从文档流中删除,引起重排和回流,子元素同样被删除;

3、opacity:0 设置元素透明度为0,保留dom节点,元素在文档流中占据空间,子元素会继承父元素的opacity特性,但是子元素设置opacity:1;同样不会显示出来。

4、通过给元素设置rgba(x,x,x,0)为透明隐藏效果,但仍然会占据一片空间,且子元素不会受到影响

!DOCTYPE html
html lang="en"
  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" /
    titleDocument/title
    style
        .father1{
            height: 200px;
            width: 200px;
            background-color: #aabbcc;
            margin-top:20px;
            display: none;
        }
        .son1{
            height: 100px;
            width: 100px;
            background-color: #eeaaee;
            display: block;
        }
        .father2{
            opacity: 0;
            height: 200px;
            width: 200px;
            background-color: #aabbcc;
            margin-top:20px;
            opacity: 0;
        }
        .son2{
            height: 100px;
            width: 100px;
            background-color: #eeaaee;
            opacity: 1;
        }
        .father3{
            visibility: hidden;
            height: 200px;
            width: 200px;
            background-color: #aabbcc;
            margin-top:20px;
            visibility: hidden;
        }
        .son3{
            height: 100px;
            width: 100px;
            background-color: #eeaaee;
            visibility: visible;
        }
    /style
  /head
  body
    div class="father1"
      div class="son1"/div
    /div
    div class="father2"
      div class="son2"/div
    /div
    div class="father3"
      div class="son3"/div
    /div
    script/script
  /body
/html

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