图片水平垂直居中于DIV(图片未知宽高)

HTML代码:

<div class=”demo”><href=“#”><img src=“images/01.jpg” /></a></div>

css


/*For Firefox Chrome*/
.demo{border:1px #ddd solid;208px;height:148px;overflow:hidden;text-align:center;display:table;float:left;margin:50px;position:relative;}
.demo a{display:table-cell;vertical-align:middle;200px;height:140px;}
.demo a img{border:1px #ddd solid;margin:0 auto;max-200px;max-height:140px;}
/*For IE7*/
*+html .demo a{position:absolute;top:50%;100%;text-align:center;height:auto;}

*+html .demo a img{position:relative;top:-50%;left:-50%;}

/*For IE6*/

*html .demo a{position:absolute;top:51%;100%;text-align:center;height:auto;display:block;}

*html .demo a img{position:relative;top:-50%;left:-50%;expression(this.width>200?"200px":"atuo");height:expression(this.height>140?"140px":"atuo");}

原文地址:https://www.cnblogs.com/tantry/p/4413944.html