#particles-js {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}
@keyframes gradient-x {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}
.animate-gradient-x {
    background-size: 200% 200%;
    animation: gradient-x 12s ease infinite;
}