#top_bnr{
}
#top_bnr ul{
  margin-right:-20px;
}
#top_bnr ul li{
  list-style: none;
  float:left;
  width:352px;
  margin-right:20px;
  margin-bottom:20px;
}
#top_bnr ul li a:hover img {
		opacity: 0.8;
		filter: alpha(opacity=80);
		-moz-opacity: 0.8;
		font-weight:normal;	
}