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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.
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;
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:
opactity
.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; }
Let’s take a look at the running effect:
Related video sharing:css video tutorial
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