共计 1836 个字符，预计需要花费 5 分钟才能阅读完成。
圣杯布局
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style>
\* {
padding: 0;
margin: 0;
}
.container {
padding-left: 200px;
padding-right: 200px;
}
.left {
float: left;
width: 200px;
height: 400px;
background: red;
margin-left: -100%;
position: relative;
left: -200px;
}
.center {
float: left;
width: 100%;
height: 400px;
background: yellow;
}
.right {
float: left;
width: 200px;
height: 400px;
background: blue;
margin-left: -200px;
position: relative;
right: -200px;
}
</style>
</head>
<body>
<section class="container">
<div class="center"></div>
<div class="left"></div>
<div class="right"></div>
</section>
</body>
</html>
步骤-
先写
center局部，width 100% -
center,left,right都是左浮动 -
父容器
container设置padding-left和padding-right -
设置
margin-left为负值让left和right局部回到与center局部同一行 -
设置绝对定位，让
left和right局部挪动到两边
毛病
-
center 局部的最小宽度不能小于 left 局部的宽度
-
其中一列内容高度拉长，其余两列的高度不会主动填充
双飞翼布局
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style>
\*{
padding: 0;
margin: 0;
}
.container {min-width: 600px;}
.left {
float: left;
width: 200px;
height: 400px;
background: red;
margin-left: -100%;
}
.center {
float: left;
width: 100%;
height: 400px;
background: yellow;
}
.center .inner {margin: 0 200px;}
.right {
float: left;
width: 200px;
height: 400px;
background: blue;
margin-left: -200px;
}
</style>
</head>
<body>
<section class="container">
<div class="center">
<div class="inner"> 双飞翼布局 </div>
</div>
<div class="left"></div>
<div class="right"></div>
</section>
</body>
</html>
步骤
-
先写
center局部，width 100% -
center,left,right都是左浮动 -
center局部减少一个内层div，并设margin-left,margin-right -
设置
margin-left为负值让left和right局部回到与center局部同一行
毛病
-
多加一层
dom树节点
总结
正文完
