调整窗口大小也能够实现div水平垂直居中代码实例_html/css_WEB-ITnose
调整窗口大小也能够实现div水平垂直居中代码实例:
将一个div在窗口内实现居中效果，基本上没有什么难度，具体可以参阅CSS实现div屏幕居中效果代码一章节。
但是有时候我们可能会有这样的需求，就是在调整窗口大小的情况下也能够实现div垂直水平居中效果，下面通过代码实例做一下简单介绍,代码如下:
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta name="author" content="http://www.softwhy.com/" /> <title>蚂蚁部落</title> <style type="text/css">*{ margin:0px; padding:0px;} #thediv{ width:200px; height:100px; background:green; position:absolute; left:50%; top:50%; margin-left:-100px; margin-top:-50px;}</style> </head> <body><div id="thediv"></div></body> </html>
上面的代码实现了我们的要求，因为div采用的是绝对定位，并且采用百分比的方式来确定div的基本位置，不是采用固定尺寸的方式，然后在使用外边距向回调整一定的距离，这样就实现了居中效果，同时调整浏览器窗口也会实现一直居中的效果。
原文地址是:http://www.softwhy.com/forum.php?mod=viewthread&tid=14354
更多内容可以参阅:http://www.softwhy.com/divcss/
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