<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<style>
.foo {
width: 1200px;
height: 400px;
background: #ccc;
margin: 20px auto;
}
/*如果连续的min-with，那么两者之间就可以构成一个范围()*/
/*
* [500,900), [900,1200), [1200,?)
*/
@media screen and (min-width: 500px) {
.foo {
width: 200px;
}
}
@media screen and (min-width: 900px) {
.foo {
width: 600px;
}
}
@media screen and (min-width: 1200px) {
.foo {
width: 1000px;
}
}
</style>
</head>
<body>
<div class="foo"></div>
</body>
</html>
时间： 2024-10-10 16:28:16