圣杯和双飞翼布局

//圣杯布局-wrap设置padding/left right加相对定位

<!DOCTYPE html>
<html lang="zh-CN">
<html>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"/>
<title></title>
    <style>
        *{margin:0; padding:0;}
        .wrap{padding:0 200px; overflow: hidden}
        .main{100%; background:#57ccb1; float:left; height:100px;}
        .left{ float:left;margin-left:-100%;  200px; height:100px; background:#ff3f27; position:relative; left:-200px;}
        .right{ float:left;margin-left:-200px;  200px; height:100px; background:#fbb800; position:relative;right:-200px;}
    </style>
</head>
<body>

<div class="wrap">
    <div class="main">main</div>
    <div class="left">left</div>
    <div class="right">right</div>
</div>

</body>
</html>

//双飞翼布局-在main中嵌套一层设置margin

<!DOCTYPE html>
<html lang="zh-CN">
<html>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"/>
<title></title>
    <style>
        *{margin:0; padding:0;}
        .main{100%; background:#57ccb1; float:left; height:100px;}
        .left{ float:left;margin-left:-100%;opacity:0.4;  200px; height:100px; background:#ff3f27; }
        .right{ float:left;margin-left:-200px;opacity:0.4;  200px; height:100px; background:#fbb800; }
        .main_con{margin-left:200px; margin-right:200px;}
    </style>
</head>
<body>

<div class="wrap">
    <div class="main">
        <div class="main_con">main</div>
    </div>
    <div class="left">left</div>
    <div class="right">right</div>
</div>

</body>
</html>

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原文地址：https://www.cnblogs.com/leyi/p/4752283.html