.docker {
    color: #2696ed;
  }

  @keyframes heart {
    0%, 40%, 80%, 100% {
      transform: scale(1);
    }
    20%, 60% {
      transform: scale(1.15);
    }
  }
  .heart {
    animation: heart 1000ms infinite;
    color: #ed2626;
  }
  
  .wall {
    color: #edd226a1
  }