直接上代码
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
#main {
display: flex;
/*设为伸缩容器*/
}
#left {
width: 200px;
/*左侧固定宽度*/
height: 400px;
background: aqua;
}
#center {
width: 200px;
/*固定右侧宽度*/
height: 400px;
background: blue;
}
#right {
flex-grow: 1;
/*填满剩余空间*/
height: 400px;
background: green;
}
</style>
</head>
<body>
<div id="main">
<div id="left"></div>
<div id="center"></div>
<div id="right"></div>
</div>
</body>
</html>