<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>菜鸟教程(runoob.com)</title>
<style>
ul {
list-style-type: none;
}
ul li a {
color: green;
text-decoration: none;
padding: 3px;
display: block;
}
@media screen and (max- 639px){
ul li a {
padding-left: 30px;
color:red;
}
}
@media screen and (max- 819px) and (min- 640px) {
ul li a {
padding-left: 30px;
color:green;
}
}
@media screen and (max- 1019px) and (min- 820px) {
ul li a {
padding-left: 30px;
color:yellow;
}
}
@media screen and (min- 1020px) {
ul li a {
padding-left: 30px;
color:pink;
}
}
</style>
</head>
<body>
<h1>重置浏览器窗口,查看效果!</h1>
<ul>
<li><a data-email="johndoe@example.com" href="mailto:johndoe@example.com">John Doe</a></li>
<li><a data-email="marymoe@example.com" href="mailto:marymoe@example.com">Mary Moe</a></li>
<li><a data-email="amandapanda@example.com" href="mailto:amandapanda@example.com">Amanda Panda</a></li>
</ul>
</body>
</html>