html,
body {
  margin: 0;
  padding: 0;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  touch-action: none;
}
#notification{
  position: absolute;
  background: rgba(20,20,20, 0.8);
  color: #fff;
  margin: 10px;
  padding: 10px;
  border-radius: 8px;
  right: 0;
  width: 200px;
  text-align: center;
  opacity: 0;
}