html body form.add-to-cart-form .ps-product__shopping button[type="submit"]{
  color: #FFF;
  border-color: #fbb806;
  background: #fbb806;
  border: 2px solid #fbb806;
}

html body form.add-to-cart-form .ps-product__shopping button[type="submit"]:hover{
  color: #fff;
  border-color: #222;
  background: #222;
}