.body{
   
    background-color: black!important;
    
}
canvas{
    background:black;
}
div#login{
    position: absolute;
    left: calc(50% - 160px);
}
.login h1 a{
    background-image: url('https://www.its.ae/wp-content/uploads/2018/08/Its.ae_bigbang.png');
    background-size:200px!important;
    width:200px!important;
}