#ngg-gallery-1-5{margin-bottom:20px;overflow:hidden;}
.ngg-gallery-thumbnail-box{float:left;margin:0 18px 18px 0;border:1px solid #8b8b8b;}
.ngg-gallery-thumbnail-box:hover{border:1px solid #000;}
.ngg-gallery-thumbnail-box a:hover img {filter:gray;}