方法一：flex布局
<div class="wrapper">
<div class="left">左边</div>
<div class="right">右边</div>
</div>
.wrapper { 400px; height: 400px; display: flex; background-color: blue; } .left { flex: 1; background-color: red; height: 200px; } .right { float: right; 200px; height: 200px; background-color: green; }
或者：
.wrapper {
400px;
height: 400px;
display: flex;
background-color: blue;
}
.left {
flex: 1;
padding-right: 200px;
background-color: red;
height: 200px;
}
.right {
200px;
height: 200px;
background-color: green;
}
方式二：display:table-cell的应用
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
.wrapper {
display: table;
400px;
}
.left {
display: table-cell;
1000px;
background-color: green;
}
.right {
background-color: yellow;
100px;
height: 150px;
}
</style>
</head>
<body>
<div class="wrapper">
<div class="left">左边</div>
<div class="right">右边</div>
</div>
</body>
</html>
注意：左侧div必须设置超过父元素减去右侧元素的宽度
方式三：应用float和margin
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>左边固定右边自适应</title>
<style>
.wrapper {
400px;
}
.left {
height: 100px;
margin-right: 200px;
background-color: red;
}
.right {
height: 100px;
200px;
float: right;
background-color: green;
}
</style>
</head>
<body>
<div class="wrapper">
<div class="right">右边</div>
<div class="left">左边</div>
</div>
</body>
</html>
注意：书写代码的时候，right代码在前面