.shopify-payment-button .shopify-payment-button__button--unbranded:after {
  content: "BUY NOW";
  background: inherit !important;
  height: 100% !important;
  width: 100% !important;
  display: flex !important;
  justify-content: center !important;
  align-items: center !important;
  position: absolute !important;
  top: 0 !important;
  left: 0 !important;
  border-radius: inherit !important;
}
.shopify-payment-button .shopify-payment-button__button--unbranded {
  position: relative;
}