body { cursor: none; overflow: hidden; }

div {
  background: url(bannon.png);
  background-size: cover;
  position: absolute;
  height: 150px;
  width: 150px;
  left: 50%;
  top: 50%;
  margin-left: -75px;
  margin-top: -75px;
  animation: 1500ms ease-in-out infinite dance;
}

@keyframes dance {
  0%, 100% { transform: rotate(-15deg); }
  25% { transform: rotate(15deg); }
  50% { transform: rotate(-25deg); }
  75% { transform: rotate(25deg); }
}