<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title></title>
<style type="text/css">
.btn{
width: 100px;
height: 50px;
background-color: #cc0000;
color: #ffffff;
line-height: 50px;
text-align: center;
}
.arrow{
display: inline-block;
width: 10px;
height: 10px;
background-color: red;
background: url("./img/icon.png") 0px -355px no-repeat;
}
</style>
</head>
<body>
<div class="btn">
测试
<span class="arrow"></span>
</div>
</body>
</html>这是这样背景图
我要求不高，只要能在谷歌和火狐浏览器里面背景能透明即可
很着急，请各位大神帮我看看如何处理