ul.hover_block li a {
    display: block;
    position: relative;
    overflow: hidden;
    height: 425px;
    width: 340px
    }
ul.hover_block li.two_col a {
    display: block;
    position: relative;
    overflow: hidden;
    height: 425px;
    width: 680px
    }
ul.hover_block li img {
    position: absolute;
    top: 0;
    left: 0;
    border: 0
    }