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Html基础知识学习——圣杯布局、margin负值、等高布局（十七）

news 2025/8/19 0:05:30

文章目录

圣杯布局
margin负值
等高布局

圣杯布局

在这里插入图片描述

两边页面固定中间页面宽度随着浏览器大小自适应

<!DOCTYPE html>
<html lang="en"><head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>Document</title><style>/*  圣杯布局：两边页面固定中间页面宽度随着浏览器大小自适应*/body {margin: 0;}.center {height: 600px;background-color: pink;margin: 0 200px;}.left {width: 200px;height: 600px;background-color: aqua;position: absolute;left: 0;top: 0;}.right {width: 200px;height: 600px;background-color: bisque;position: absolute;right: 0;top: 0;}</style>
</head><body><div class="center"></div><div class="left"></div><div class="right"></div>
</body></html>

margin负值

在这里插入图片描述

<!DOCTYPE html>
<html lang="en">
<head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>Document</title><style>.box{float: left;border: 10px solid #000;margin: 20px;}.box div{width: 100px;height: 100px;background-color: aquamarine;}.div1{margin-top: -30px;}.div2{margin-left: -30px;}.div3{margin-bottom: -30px;}.div4{margin-right: -30px;}</style>
</head>
<body><div class="box"><div class="div1"></div></div><div class="box"><div class="div2"></div></div><div class="box"><div class="div3"></div></div><div class="box"><div class="div4"></div></div><div class="box"><div class="div5"></div></div>
</body>
</html>

等高布局

在这里插入图片描述

<!DOCTYPE html>
<html lang="en">
<head><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>Document</title><style>/* 等高布局 */body{margin :0}.wrap{width: 900px;margin: 0 auto;overflow: hidden;border: 10px solid #000;}.wrap :after{content: "";display:block;clear: both;}.left{width: 200px;background: red;float: left;padding-bottom:400px ;margin-bottom: -400px;}.right{width: 700px;background: yellowgreen;float: right;padding-bottom:400px ;margin-bottom: -400px;}</style>
</head>
<body><div class="wrap"><div class="left">&nbsp;  &nbsp;快快乐乐<br/>&nbsp;  &nbsp;快快乐乐<br/>&nbsp;  &nbsp;快快乐乐<br/>&nbsp;  &nbsp;快快乐乐<br/>&nbsp;  &nbsp;快快乐乐<br/>&nbsp;  &nbsp;快快乐乐<br/></div><div class="right">&nbsp;  &nbsp;快快乐乐<br/>&nbsp;  &nbsp;快快乐乐<br/></div></div>
</body>
</html>

在这里插入图片描述

<!DOCTYPE html>
<html lang="en"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>Document</title><style>/* 等高布局 */body{margin :0}.wrap{width: 900px;margin: 0 auto;overflow: hidden;border: 10px solid #000;}.wrap :after{content: "";display: block;clear: both;}.left{width: 200px;background: red;float: left;padding-bottom:200px ;margin-bottom: -200px;}.right{width: 200px;background: yellowgreen;float: right;padding-bottom:200px ;margin-bottom: -200px;}</style>
</head>
<body><div class="wrap"><div class="left">&nbsp;  &nbsp;快快乐乐<br/>&nbsp;  &nbsp;快快乐乐<br/>&nbsp;  &nbsp;快快乐乐<br/>&nbsp;  &nbsp;快快乐乐<br/>&nbsp;  &nbsp;快快乐乐<br/>&nbsp;  &nbsp;快快乐乐<br/></div><div class="right">&nbsp;  &nbsp;快快乐乐<br/>&nbsp;  &nbsp;快快乐乐<br/></div></div>
</body>
</html>