salla-add-product-button .s-button-btn,
.s-add-product-button-main,
.btn--add-to-cart {
  background-color: #000 !important;
  border-color: #000 !important;
  color: #fff !important;
  border-radius: 50px !important;
  transition: all .25s ease;
}
salla-add-product-button .s-button-btn:hover,
.s-add-product-button-main:hover,
.btn--add-to-cart:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 14px rgba(0,0,0,.25);
}