<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="./黑马/图片/京东/download/font_3459154_oua9l2daqpe/iconfont.css">
<title>Document</title>
</head>
<style>
@media (min-width: 1200px) {
html {
font-size: 18px;
}
span{
color: red;
}
}
@media (max-width: 720px) {
html {
font-size: 16px;
}
span{
color: blue;
}
}
@media (max-width: 640px) {
html {
font-size: 14px;
}
span{
color: lightcoral;
}
}
@media (max-width: 480px) {
html {
font-size: 12px;
}
span{
color: lightgreen;
}
}
.box{
width:40rem;
height:20rem;
background-color: seagreen;
}
</style>
<body>
<div class="box">
<span class="iconfont icon-huiyuanzhongxin"></span>
</div>
</body>
</html>