ul#pItems { float: left; list-style: none; width: 450px; }
ul#pItems li { padding: 5px; float: left; }

div.pItemDetails { float: right; width: 418px; }

#main_image { text-align: center; background: #fff; min-height: 418px; }

.gallery-holder { min-height: 418px; }

.img-holder { background: #fff; }

.slider li { display: block; }
.img-holder img { display: block; margin-left: auto; margin-right: auto; }