EXT-Touch.css

#EXT_TOUCH {
  display: inline-flex;
}

#EXT_TOUCH.hidden {
  display: none;
}

#EXT_TOUCH-ICON {
    background-size: 100%;
    width: 50px;
    height: 52px;
    background-repeat: no-repeat;
}

#EXT_TOUCH-ICON.busy {
  filter:brightness(50%) grayscale(75%);
}

#EXT_TOUCH-ICON.hidden {
  display: none
}

#EXT_TOUCH-ICON.flash {
  opacity: 1;
  animation: flash normal 1.5s infinite ease-in-out;
}

@keyframes flash {
  0% {
      opacity:1;
  }
  50% {
      opacity:0;
  }
  100% {
      opacity:1;
  }
}