#rod {
  position: relative;
  margin-top: 50px;
  margin-left: 150px;
  width: 2px;
  height: 150px;
  border-radius: 5px;
  transform-origin: 50% 0%;
  transform: rotate(60deg);
  background-color: green;
}
#pivot {
  position: absolute;
  top: -5px;
  left: -3px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: black;
}
#ball {
  position: absolute;
  bottom: -10px;
  left: -10px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background-color: orange;
}