ul.thumb {
	float: left;
	list-style: none;
	margin: 0; padding: 0;
	width: 1000px;
}
ul.thumb li {
	margin-right: 5px; padding: 5px;
	float: left;
	position: relative;
	width: 110px;
	height: 110px;
}
ul.thumb li img {
	width: 110px; height: 110px;
	border: 1px solid #ddd;
	padding: 5px;
	background: #f0f0f0;
	position: absolute;
	left: 0; top: 0;
	-ms-interpolation-mode: bicubic; 
}
ul.thumb li img.hover {
	background:url(thumb_bg.png) no-repeat center center;
	border: none;
}