css

css-经典布局

Posted by Leo on 2019-07-24

一、经典布局

1. 圣杯布局

margin负边距强大之处

Document
圣杯布局
main
left
right
footer
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
* {
padding: 0;
margin: 0;
}
body {
min-width: 600px;
}
header,
footer {
text-align: center;
width: 100%;
background-color: #bbbbbb;
}
.text {
text-align: center;
line-height: 200px;
font-size: 40px;
color: #fff;
}
.bd {
overflow: hidden;
padding: 0 200px 0 200px;
}
.main {
float: left;
width: 100%;
height: 200px;
background-color: #ddd;
}
.left {
/* opacity: 0.5; */
float: left;
width: 200px;
height: 200px;
background-color: #da4242;
/* 产生布局效果的属性 */
margin-left: -100%;
position: relative;
left: -200px;
}
.right {
/* opacity: 0.5; */
float: left;
width: 200px;
height: 200px;
background-color: #4ddef1;
/* 产生布局效果的属性 */
margin-right: -200px;
/*position: relative;*/
/*right: -200px;*/
}
</style>

</head>
<body>
<header>圣杯布局</header>
<div class="bd">
<div class="main text">
main
</div>
<div class="left text">
left
</div>
<div class="right text">
right
</div>
</div>
<footer>footer</footer>
</body>

</html>

2.0 双飞翼布局

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
* {
padding: 0;
margin: 0;
}
body {
min-width: 600px;
}
header,
footer {
text-align: center;
width: 100%;
background-color: #bbbbbb;
}
.text {
text-align: center;
line-height: 200px;
font-size: 40px;
color: #fff;
}
.bd {
overflow: hidden;

}
.main {
float: left;
width: 100%;
height: 200px;
background-color: #ddd;
}
.main-content {
margin: 0 200px;
}
.left {
/* opacity: 0.5; */
float: left;
width: 200px;
height: 200px;
background-color: #da4242;
/* 产生布局效果的属性 */
margin-left: -100%;

}
.right {

float: left;
width: 200px;
height: 200px;
background-color: #4ddef1;
/* 产生布局效果的属性 */
margin-left: -200px;

}
</style>

</head>
<body>
<header>圣杯布局</header>
<div class="bd">
<div class="main text">
<div class="main-content">mian</div>
</div>
<div class="left text">
left
</div>
<div class="right text">
right
</div>
</div>
<footer>footer</footer>
</body>


</html>