body {
  overflow: hidden;
}

.ball {
  width: 125px;
  height: 125px;  
  background-image: url("../images/Ball.png");
  background-repeat: no-repeat;
  border-radius: 50%;
  border: 3px solid transparent;
  box-sizing: border-box;
  will-change: transform;
  position: absolute;
}