.outofstock {
  position: relative;
  overflow: hidden;
}

.outofstock::after {
  content: "BRAK";
  position: absolute;
  top: 27px;
  right: -50px;
  width: 250px;
  text-align: center;
  transform: rotate(45deg);
  line-height: 40px;
  background: linear-gradient(#B6BAC9 0%, #808080 100%);
  color: #FFFFFF;
  box-shadow: 0 5px 10px rgba(0,0,0,0.15);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 1px;
  pointer-events: none;
}