.buy_books{margin-top: 20px;}
.buy_books .purchase{cursor: pointer; margin-left: 140px; display: block; height: 29px; width: 130px; background: url('/media/images/book/purchase_btn.png') no-repeat;}
.buy_books .read_reviews{cursor: pointer; float: left; display: block; height: 31px; width: 131px; background: url('/media/images/book/read_reviews_btn.png') no-repeat;}