@keyframes fade-in {
    0% { opacity: 0; }
    100% { opacity: 1; }
  }

  .left {
    animation: fade-in 4s;
  }

  .backImg {
    animation: slide-up 1s;
  }

  @keyframes slide-up {
    0% {
      opacity: 0;
      transform: translateY(20px);
    }
    100% {
      opacity: 1;
      transform: translateY(0);
    }
  }