#preloader {
    backdrop-filter : blur(5px);
}

#preloader svg {
    animation: pulse-white 1.5s infinite;
}

@keyframes pulse-white {
    0% {
        transform: scale(0.9);
        filter: drop-shadow(0 0 0 rgba(255, 255, 255, 0.75));
    }

    70% {
        transform: scale(1.1);
        filter: drop-shadow(0 0 50px rgba(255, 255, 255, 0));
    }

    100% {
        transform: scale(0.9);
        filter: drop-shadow(0 0 0 rgba(255, 255, 255, 0));
    }
}