#apply a{ display:block; outline:none; text-decoration:none; color:transparent;}
#apply a:link {color: #ff0000}
#apply a:visited
{ text-decoration:none;}
#apply ar:hover{color: #ff0000}
<div id="apply">
<a
href="javascript:void(0)"><img src="./images/text_specialtopic_apply.png"
width="170" height="44"/></a>
</div>
原文:http://www.cnblogs.com/kaixiner/p/3620879.html