How to set color transparency in css-CSS Tutorial-php.cn

How to set color transparency in css

王林

Release： 2023-01-06 11:14:15

Original

12423 people have browsed it

The way to set color transparency in css is to add the opacity attribute to the specified element and set the appropriate opacity, such as [opacity:0.5;], which means setting the element to semi-transparent.

How to set color transparency in css

The operating environment of this article: windows10 system, css 3, thinkpad t480 computer.

The opacity attribute can be used to set the transparency of the element's background; it requires a value between 0 and 1.

0 means completely transparent (opacity:0);

1 means completely opaque (opacity:1);

0.5 means semi-transparent (opacity:0.5);

Syntax:

opacity: value|inherit;

Copy after login

Attribute value:

value Specifies opacity. From 0.0 (fully transparent) to 1.0 (fully opaque)
inherit The value of the Opacity attribute should be inherited from the parent element

Code example:

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>opactity</title>
    <style>
    .box1{
                position:relative;
        width:200px;height:200px;
        background-color: #00f;
    }
         .box2{
              position:absolute;
              top:80px;
              left:80px;
              width:200px;
              height:200px;
              background-color:#0f0;
       }
       .box3{
             position:relative;
              width:200px;
              height:200px;
              background-color:#f00;
              z-index:1;
}
</style>
</head>
<body>
    <div></div>
       <div></div>
       <div></div>
</body>
</html>

Copy after login

.box1{
                 position:relative;
             width:200px;height:200px;
            background-color: #00f;
            z-index:10;
            opacity:0.5;
     }
          .box2{
               position:absolute;
               top:80px;
               left:80px;
               width:200px;
               height:200px;
               background-color:#0f0;
               z-index:5;
               opacity:0.5;
        }
        .box3{
               position:relative;
               width:200px;
               height:200px;
              background-color:#f00;
             z-index:1;
               opacity:0.5;
 }

Copy after login

Let’s take a look at the running effect:

How to set color transparency in css

Related video sharing: css video tutorial

The above is the detailed content of How to set color transparency in css. For more information, please follow other related articles on the PHP Chinese website!