.thumbwrap {
  background:url(/img/g10d.gif); border:1px solid #999; padding:15px 8px 0 8px;
}
.thumbwrap li { 
  display:-moz-inline-box; -moz-box-orient:vertical; /* Moz */
  display:inline-block;  /* Op, Saf, IE \*/
  vertical-align:top;  /* IE Mac non capisce e a volte crea extra v space */
  margin:0 7px 15px 7px;
  padding:0;
}
.thumbwrap a {
  display:block;
  border:4px solid #999;
  color:#000;
  background-color:#eee;
  text-decoration:none;
}
.thumbwrap a:hover, .thumbwrap a:active {
  border-color:#33f;
  position:static;
}
.thumbwrap a img {
  border-width:0;
  vertical-align:bottom;
}
a:hover, a:active {position:static;}

<!--[if IE]>
.thumbwrap li {
  display:inline;
  height:0;
  he\ight:auto;
}
<![endif]-->