布局，实现左侧固定，右侧自适应的布局

一、通过calc，兼容ie9+

  • 代码

    <!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>布局，实现左侧固定，右侧自适应的布局</title>
    <style>
        *{padding:0;margin:0;}
        html,body{height: 100%}
        .header{
            height: 100px;
            background: lightgrey;
        }
        .content{
            height: calc(100% - 100px);
            position: relative;
            background: lightyellow;
        }
        .left{
            width: 200px;
            height:100%;
            position: absolute;
            background: lightgreen;
        }
        .right{            
            height:100%;
            margin-left:200px;
            background: lightblue;
        }
    </style>
</head>
<body>
    <div class="header">header：calc和position进行布局</div>
    <div class="content">
        <div class="left">left固定</div>
        <div class="right">right自适应</div>
    </div>
</body>
</html>

  • 效果

    效果图

  • 实际页面

二、通过box-sizing: border-box;

  • 代码

    <!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title>布局2，通过box-sizing: border-box;</title>
    <style>
        *{margin:0;padding:0;}
        .top {
            width: 100%;
            height: 40px;
            background: #000;
            color:#fff;
            position:absolute;
            top:0;
            text-align:center;
            line-height:40px;
        }
        .bottom{
            width:100%;
            height:40px;
            background:#000;
            color:#fff;
            position:absolute;
            bottom:0;
            text-align:center;
            line-height:40px;
        }
        .mainBox{
            width:100%;
            position:absolute;
            top:40px;
            bottom:40px;
        }
        .mainBox .leftBox{
            height:100%;
            width:200px;
            float:left;
            margin-bottom:40px;
            overflow: auto;
            border:6px solid green;
            box-sizing: border-box;
            text-align:center;
            line-height:40px;
        }
        .mainBox .rightBox{
            height:100%;
            margin-left:220px;
            border:6px solid crimson;
            box-sizing: border-box;
            overflow: auto;
            text-align:center;
            line-height:40px;
        }
    </style>
</head>
<body>
<div class="top">顶部，高度40px</div>
<div class="mainBox">
    <div class="leftBox">左盒子，固定宽度200px，高度自适应铺满屏幕剩余高度</div>
    <div class="rightBox">右盒子，距离左盒子20px，高度自适应宽度自适应铺满屏幕剩余高度</div>
</div>
<div class="bottom">底部，高度40px</div>
</body>
</html>

  • 效果

    效果图

  • 实际页面

demo代码

以上文章来自：黄卉 ， https://huanghui8030.github.io/css/layout.html