margin参数简单介绍_html/css_WEB-ITnose
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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