div.media-grid-wrapper {
    text-align: center
}
.media-grid-wrapper ul{
    list-style: none;
	display: block;
}
.media-grid-wrapper .thumbnail {
	border: none;
	padding: 0;
	margin-bottom: 23px;
	display: block;
}

.media-grid-wrapper .thumbnail img {
    width: 100%
}
.media-grid-wrapper li {
	display: inline-block;
    font-size: 18px;
}

.thumbnail .caption-overlay {
	width: 100%;
	vertical-align: bottom;
	color: #fff;
	bottom: 0;
	left: 0;
	right: 0;
	font-size: 22px;
	font-weight: 700;
	padding: 15px;
	padding-top: 100px;
	position: absolute;
	background: #000;
	background: linear-gradient( 0deg,rgba(0,0,0,0.6) 0%,rgba(0,0,0,0.4) 20%,rgba(0,0,0,0) 100% )
}