/* Block Viewed Products */
div#viewed-products_block_left div.block_content ul.products li { 
    margin-top: 0;
    padding: 4px 0 0 
}
div#viewed-products_block_left div.block_content ul.products li img {
    margin-right: 10px;
    float: left;
 }

 div#viewed-products_block_left div.block_content ul.products li a:hover{
    opacity : 0.2;
    filter : alpha(opacity=20)
 }