Share several CSS methods for clearing floats

This article mainly shares with you several methods of clearing floats in CSS, hoping to help you.

1. The parent p defines height

<style type="text/css"> .p1{background:#000080;border:1px solid red;height:200px;}
    .left{float:left;width:20%;height:200px;background:#DDD}
    .right{float:right;width:30%;height:80px;background:#DDD}</style><p class="p1"> <p class="left">Left</p> <p class="right">Right</p></p>

The parent p manually defines the height, which solves the problem that the parent p cannot automatically obtain the height (only recommended for layouts with fixed height)

2. Add an empty p tag at the end clear:both

<style type="text/css"> .p1{background:#000080;border:1px solid red}
    .left{float:left;width:20%;height:200px;background:#DDD}
    .right{float:right;width:30%;height:80px;background:#DDD}
    .clearfloat{clear:both}</style><p class="p1"> <p class="left">Left</p> <p class="right">Right</p> <p class="clearfloat"></p></p>

添加一个空p，利用css提高的clear：both清除浮动，让父级p自动获取高度（以前使用的较多）

3. Parent p defines pseudo-classes: after and zoom

<style type="text/css"> .p1{background:#000080;border:1px solid red;}
    .left{float:left;width:20%;height:200px;background:#DDD}
    .right{float:right;width:30%;height:80px;background:#DDD}
    .clearfloat:after{display:block;clear:both;content:"";visibility:hidden;height:0}
    .clearfloat{zoom:1}</style><p class="p1 clearfloat"> <p class="left">Left</p> <p class="right">Right</p></p>

Only supported by IE8 and above and non-IE browsers :after,zoom (ie proprietary attribute) can solve the floating problem of IE6 and IE7

4. Parent p definition overflow:hidden

<style type="text/css"> .p1{background:#000080;border:1px solid red;width:98%;overflow:hidden}
    .left{float:left;width:20%;height:200px;background:#DDD}
    .right{float:right;width:30%;height:80px;background:#DDD}</style><p class="p1"> <p class="left">Left</p> <p class="right">Right</p></p>

必须定义width或zoom:1，同时不能定义height，使用overflow:hidden时，浏览器会自动检查浮动区域的高度

5. Parent definition: overflow: auto

<style type="text/css"> .p1{background:#000080;border:1px solid red;/*解决代码*/width:98%;overflow:auto}
    .left{float:left;width:20%;height:200px;background:#DDD}
    .right{float:right;width:30%;height:80px;background:#DDD}</style><p class="p1"> <p class="left">Left</p> <p class="right">Right</p></p>

必须定义width或zoom:1，同时不能定义height，使用overflow:auto时，浏览器会自动检查浮动区域的高度

6. The parent p also floats together

<style type="text/css"> .p1{background:#000080;border:1px solid red;width:98%;margin-bottom:10px;float:left}
    .left{float:left;width:20%;height:200px;background:#DDD}
    .right{float:right;width:30%;height:80px;background:#DDD}</style><p class="p1"> <p class="left">Left</p> <p class="right">Right</p></p>

All codes float together, new floats will be generated, just for understanding

7. The parent p defines display:table

<style type="text/css"> .p1{background:#000080;border:1px solid red;width:98%;display:table;margin-bottom:10px;}
    .left{float:left;width:20%;height:200px;background:#DDD}
    .right{float:right;width:30%;height:80px;background:#DDD}</style><p class="p1"> <p class="left">Left</p> <p class="right">Right</p></p>

Change the attributes of p into a table

8.At the end Add the br tag clear: both

<style type="text/css"> .p1{background:#000080;border:1px solid red;margin-bottom:10px;zoom:1}
    .left{float:left;width:20%;height:200px;background:#DDD}
    .right{float:right;width:30%;height:80px;background:#DDD}
    .clearfloat{clear:both}</style><p class="p1"> <p class="left">Left</p> <p class="right">Right</p> <br class="clearfloat" /></p>

The parent p defines zoom: 1 to solve the IE floating problem, and add the br tag clear: both

at the end. Related recommendations:

About the method of clearing floats in CSS

How to clear floats in css

What are the methods and advantages and disadvantages of clearing floats

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