.loading {
    position: absolute;
    top: 50%;
    left: 50%;
    font-size: 1rem;
    animation: loading-animation 1s ease-in infinite alternate;
}

@keyframes loading-animation {
    0% {
        transform: translate(-50%, -50%) scale(0.9, 1.1);
    }
    100% {
        transform: translate(-50%, -50%) scale(1.1, 0.9);
    }
}