.product-variant--out-of-stock::after{
  content:"Sold";
  color: black;
  font-weight: 600;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: end;
  justify-content:center;
  background-color: rgba(255,255,255,0.6);
  
}