html,body{
    margin:0;
    padding:0;
    height:100%;
    background-position: center;
    background-repeat: no-repeat;
    background-image: url("/images/background.jpg");
    background-size: cover;
}

#logo {
    position: fixed;
    padding: 50px 50px;
}

#logo img {
    height: 90px;
    width: auto;
    filter: brightness(0) invert(1);
}