@keyframes fadeInMainContent {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
.container-animation {
  animation: fadeInMainContent 1s cubic-bezier(0.4, 0, 0.2, 1) both;
  will-change: opacity, transform;
}