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margin参数简单介绍_html/css_WEB-ITnose

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Jun 24, 2016 am 11:37 AM

margin参数简单介绍:

此属性是用来设置元素的外边距的，再简单不过了，这里就不多介绍了，唯一可能造成困扰的就是它的参数，因为它最多可以有4个参数，当然也有缩写的形式，比如可以只带一个参数，下面就简单介绍一下。

参数列表如下:

一.带有一个参数的时候，将会作用于四边，例如margin:10px。

二.带有两个参数的时候，第一个用于上、下，第二个用于左、右，例如margin:10px auto。

三. 带有三个参数的时候，第一个用于上，第二个用于左、右，第三个用于下，例如margin:10px 5px 20px。

四.带有四个参数的时候，将按上、右、下、左的顺序作用于四边，例如margin:5px 10px 20px 5px。

具体就不多介绍了，具体可以参阅CSS的margin属性一章节。

原文地址是:http://www.51texiao.cn/div_cssjiaocheng/2015/0525/2444.html

最为原始地址是:http://www.softwhy.com/forum.php?mod=viewthread&tid=9622

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