html, body {
    width: 100%;
    height: 100%;
    background: white;
}

/* ---- particles.js container ---- */

#particles-js {
    width: 100%;
    height: 100%;
    background-color:dimgrey;
    background-image: url('Images/pEeUsp1.jpg');
    background-size: cover;
    background-position: 50% 50%;
    background-repeat: no-repeat;
}