@media screen and (min-width: 768px) and (max-width: 992px){
    div.product {
        height: 550px!important;
        width: 50%!important;
        margin-left: auto;
        margin-right: auto;
    }
}
@media screen and (min-width: 992px){

    .addtocart-area{
        height: 76px;
        vertical-align: bottom;
    }
}