body.sticky_add_to_cart .js-product-add-to-cart .product-quantity {
    position: fixed;
    bottom: -100px;
    z-index: 10;
    background: white;
    left: 0px;
    right: 0px;
    padding: 18px 15px;
    transition: bottom 0.3s ease;
}
body.sticky_add_to_cart .js-product-add-to-cart.show .product-quantity {
    bottom: 0px;
    transition: bottom 0.3s ease;
}
body.sticky_add_to_cart #return-to-top{
    display: none!important;
}
body.sticky_add_to_cart .product-quantity .qty,body.sticky_add_to_cart .product-quantity .add{
    margin-bottom: 0px
}
body:not(.sticky_add_to_cart) .fixedheightcart {
    display: none
}