EFECTO TRUENO EN LOS LINK AL PASAR EL CURSOR

<style type="text/css">
 a.navbar:hover{color:red;
font-weight:bold;background-image:url(http://i27.tinypic.com/52xls0.gif);} a:hover, a.redlink:hover, a.navbar:hover
{background-image:url(http://i27.tinypic.com/52xls0.gif); text-decoration:none; border:0px solid;} a:hover img
{background-image:url(http://i27.tinypic.com/52xls0.gif);filter:alpha(finishopacity=0, style=2); }
</style>
<div style="position:absolute;left:0px;top:0px;"><a
</div>