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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>背景颜色的设置</title>
<style>
div{
width:200px;
height:100px;
}
.item-1{
background-color: red;
}
.item-2{
background-color:rgb(0,0,0);
}
.item-3{
background-color:rgba(0,0,0,0.5);
}
.item-4{
background-color:#452215
}
</style>
</head>
<body>
<!--background-color设置颜色的四个值
1.具体单词
2.rgb
3.rgba
4.十六进制-->
<div class="item-1"></div>
<div class="item-2"></div>
<div class="item-3"></div>
<div class="item-4"></div>
</body>
</html>点击 "运行实例" 按钮查看在线实例
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