.product_select_dropdown{
    position: absolute;
    margin: 17px 0 0 0;
    padding: 5px;
    min-width: 200px;
    background: #FFFFFF;
    border: 1px solid #CCCCCC;
     z-index:1
}
.product_select_dropdown ul{
    margin:0;
    padding: 0 0 0 21px;
}