body {
  background: #56c8d8;
}

.content {
  position: absolute;
  top: 45%;
  left: 57.5%;
  transform: translate(-50%, -50%);
  display: block;
}

.paddle, .player_two, .player_one {
  height: 40px;
  width: 3px;
  background-color: white;
  position: relative;
}

.player_one {
  left: -180px;
  animation: movePaddleOne 4s infinite;
}

.player_two {
  left: 20px;
  animation: movePaddleTwo 4s infinite;
}

.ball {
  position: relative;
  height: 5px;
  width: 5px;
  border-radius: 50%;
  background-color: white;
  animation: moveBall 4s infinite linear;
}

@keyframes movePaddleOne {
  0%, 100% {
    transform: translate(0px, 100px);
  }
  25% {
    transform: translate(0px, 0px);
  }
  50% {
    transform: translate(0px, 0px);
  }
  75% {
    transform: translate(0px, 100px);
  }
}
@keyframes movePaddleTwo {
  0%, 100% {
    transform: translate(0px, -50px);
  }
  25% {
    transform: translate(0px, 10px);
  }
  50% {
    transform: translate(0px, 0px);
  }
  75% {
    transform: translate(0px, 50px);
  }
}
@keyframes moveBall {
  0%, 100% {
    transform: translate(-180px, 30px);
  }
  25% {
    transform: translate(18px, -25px);
  }
  50% {
    transform: translate(-180px, -55px);
  }
  75% {
    transform: translate(18px, 15px);
  }
}