htmlHow to set the transparency of div: 1. Using the opacity attribute, you only need to add the "opacity: transparency value;" style to the div element; 2. Using the filter attribute, you only need to add "filter" to the div element. :opacity (transparency value);" style.
The operating environment of this tutorial: Windows 7 system, CSS3&&HTML5 version, Dell G3 computer.
htmlSet the transparency of div
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<style>
.box1{
width: 300px;
height: 200px;
background-color: yellow;
}
.box2{
width: 100px;
height: 100px;
background-color: green;
}
</style>
</head>
<body>
<div class="box1">
<div class="box2"></div>
</div>
</body>
</html>1. Use the opacity attribute to set the transparency The smaller the value, the more transparent it is.
.box2{
width: 100px;
height: 100px;
background-color: green;
opacity: 0.8;
}
.box2{
width: 100px;
height: 100px;
background-color: green;
opacity: 0.5;
}
.box2{
width: 100px;
height: 100px;
background-color: green;
opacity: 0.2;
}2. Use filter: opacity (transparency value);, the smaller the transparency value, the more transparent it is.
.box2{
width: 100px;
height: 100px;
background-color: green;
filter:opacity(0.5);
}
.box2{
width: 100px;
height: 100px;
background-color: green;
filter:opacity(0.1);
}Recommended tutorial: "html video tutorial"
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