.ngg-gallery-thumbnail-box { 
	float: left;
	width: 300px;
	height: 250px;
	margin: 0px 40px 40px 0px;
}
.ngg-gallery-thumbnail-box:nth-child(3n) { 
	margin-right: 0px;
}
.ngg-gallery-thumbnail-box .ngg-gallery-thumbnail { }
.ngg-gallery-thumbnail-box .ngg-gallery-thumbnail a { 
	display: block;
}
.ngg-gallery-thumbnail-box .ngg-gallery-thumbnail a img { 
	display: block;
	margin: 0px auto;
}