} #right{ border :1px solid red; height: 200px;
} </style>
</head> <body> <div id="left"></div> <div id="right"></div> </body> </html>
两列右列宽度自适应
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>两列右列宽度自适应</title>
<style>
#left{
border:1px solid #fcc;
height: 200px;
float: left;
width:300px
} #right{ border :1px solid red; height: 200px;
} </style>
</head> <body> <div id="left"></div> <div id="right"></div> </body> </html>
} #right{ border :1px solid red; height: 200px;
} </style>
</head> <body> <div id="left"></div> <div id="right"></div> </body> </html>