<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>固比布局</title>
<style>
html, body {
width: 100%;
height: 100%;
margin: 0;
padding: 0;
}
body {
display: flex;
}
#box1 {
width: 200px;
height: 100%;
background-color: pink;
}
#box2 {
flex: 1;
background-color: blue;
}
#box3 {
width: 200px;
height: 100%;
background-color: green;
}
</style>
</head>
<body>
<div id="box1"></div>
<div id="box2"></div>
<div id="box3"></div>
</body>
</html>
