body{
    background-image: url('../img/bg/img.gif');
    background-repeat: no-repeat;
    background-size: cover;
    font-family: 'Roboto Mono',
    monospace;
    color: white;

}

#main-canvas{
    display:block;
    position: absolute;
    margin:auto;
    top: 0px;
    left: 0px;
    bottom: 0px;
    right: 0px;
    /*border: 5px solid black;*/
    /**/
}

#bg-changer{
    margin-left: 100%;
    
}