html,
body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    /* background: #111; */
    background: linear-gradient(-45deg, #0e0e0e, #000000);
    background-size: 400% 400%;
    animation: gradient 15s ease infinite;
    height: 100%;
}

@keyframes gradient {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

canvas {
    display: block;
}

#particles-js {
    width: 100%;
    height: 100%;
    /* background-color: #111; */
    background-image: url("");
    background-size: cover;
    background-position: 50% 50%;
    background-repeat: no-repeat;
}