@keyframes heart {
    0%, 40%, 80%, 100% {
      transform: scale(1);
    }
    20%, 60% {
      transform: scale(1.15);
    }
}
.heart {
    animation: heart 1000ms infinite;
}
.youtube {
    color: #EE0F0F;
}
  .fire {
    color: orange;
  }