<html> <body> <style type="text/css"> <!-- .thumbnail{position:relative;z-index:0;} .thumbnail:hover{background-color:transparent;z-index:50;} .thumbnail span{position:absolute;background-color:#FFFFE0;left:-1000px;border:1px dashed gray;visibility:hidden;color:#000;text-decoration:none;padding:5px;} .thumbnail span img{border-width:0;padding:2px;} .thumbnail:hover span{visibility:visible;top:10px;left:280px;} p{margin-top:200px} --> </style> <a class="thumbnail" href="#"> 文字<br> <span><img src=" "> </span></a> </body> </html>
原文：http://www.cnblogs.com/yechangzhong-826217795/p/5012565.html