#left_column #field_bestsellers, #right_column #field_bestsellers {
    border: 1px solid #e2dfdf;
    box-shadow: 0 0 0 1px #fff inset;
    min-height: 340px;
    overflow: hidden;
    padding: 0 15px;
}
#field_bestsellers .item-content{
    border-bottom: 1px solid #e2dfdf;
    box-shadow: 0 1px #fff;
    margin: 20px 0 0;
    padding-bottom: 21px;
}
#field_bestsellers .item-content:last-child{
    border-bottom: 0;
    box-shadow: none;
}