Game A tank

by jshacker

HTML

<div class="tank-game-A"></div>

CSS

.tank-game-A {
  border: 50px solid grey;
  position: relative;
  top: 130px;
  left: 50%;
  width: 0;

  animation: heartbeat 1s infinite;
  box-shadow:
    0 -100px 0 0 grey,
    0 -120px 0 0 grey,
    -100px -30px 0 0 grey,
    -100px 70px 0 0 grey,
    100px 70px 0 0 grey,
    100px -30px 0 0 grey;
}

@keyframes heartbeat {
  0% {
    border-color: grey;
  }
  50% {
    border-color: white;
  }
  100% {
    border-color: grey;
  }
}