.item-color {
  opacity: 0;
  z-index: 10;
  position: absolute;
  width: 100%;
  height: 100%;
  box-shadow: inset 0px 0px 50px 5px rgba(0, 255, 34, 0.5);
  -webkit-box-shadow: inset 0px 0px 50px 5px rgba(0, 255, 34, 0.5);
}