.thumbnail-frame0:after,
.thumbnail-frame1:after,
.thumbnail-frame2:after,
.thumbnail-frame3:after,
.thumbnail-frame4:after,
.thumbnail-frame5:after {
	position: absolute;
	content: ' ';
	width: 100%;
	height: 30%;
	top: 0;
	left: 0;
	opacity:.5;
	background: -moz-linear-gradient(top, rgba(255,255,255,0.7) 0%, rgba(255,255,255,.1) 100%);
	background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,rgba(255,255,255,0.7)), color-stop(100%,rgba(255,255,255,.1)));
	background: linear-gradient(top, rgba(255,255,255,0.7) 0%,rgba(255,255,255,.1) 100%);
}