.demo{
background:transparent;<!--背景透明-->
color:#fff;<!--字体颜色-->
background-color:rgba(255,255,255,0.15)<!--最后一个参数设置透明度,前面三个是RGB颜色值-->
}
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<style type="text/css">
.aa{
width: 400px;
height: 200px;
background-image: url(../../img/360/5yuq4ivk.bmp);
background-size: 100% 100%;
}
.demo{
width: 200px;
height: 100px;
color: yellow;
/*background:transparent;*/
background-color:rgba(144, 238 ,144, 0.6);
}
</style>
</head>
<body>
<div class="aa">
<div class="demo">
大家辛苦了!
</div>
</div>
</body>
</html>
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