.btn {
  --ripple-background: white;
  --ripple-opacity: 0.3;
  --ripple-duration: 600ms;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}