#cbcmaps {text-align:center; margin: 10px 0;}

.extra {display:inline; float:left; margin:5px 15px; text-decoration:none;}
.extra em {font-style:normal;}
.extra em.txt, .extra b {display:none;}
.extra .head {display:block; width:281px; height:55px;}
.extra .color1 {background:#00086A;}
.extra .color2 {background:#861818;}

.extra img {border:0; display:block;}
.extra em.mh2 {padding-left:5px; margin:0; color:#fff; font-weight:600; 
    font-family:arial, sans-serif; font-size:20px;}
.extra em.mh3 {padding-left:5px; margin:0; color:#fdff4d; font-weight:400;
    font-family: arial, sans-serif; font-size:20px;}

.extra:hover {background:#fff; position:relative; cursor:pointer;}
.extra:hover b {display:block; position:absolute; top:55px; left:0; width:281px; background:#ccc; height:65px; opacity:0.7;}
.extra:hover .color1 b {background:#00086A;}
.extra:hover .color2 b {background:#861818;}

.extra:hover em.txt {display:block; position:absolute; top:60px; width:271px; left:5px; height:55px;
    color:#fff; margin:0; line-height:1.2em; text-decoration:none; font-weight:500;}

<!--[if lte IE 6]>
<style type="text/css">
.extra:hover b {filter: alpha(opacity=70); filter: progid:DXImageTransform.Microsoft.Alpha(opacity=70);}
</style>
<![endif]-->