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

.swatch .line {
  opacity: 0;
}

.swatch.out-of-stock .line {
  display: block;
  height: 1px;
  width: 130%;
  background: var(--grey2);
  transform: rotate(-31.63deg);
  position: absolute;
  left: -2px;
  top: 37%;
  opacity: 1;
}