body {
                height : 100%;
                width : 100%;
                justify-content: center;
                background-color: grey;
                overflow:hidden;
                color: white;
                font-family: Arial, Helvetica, sans-serif;
                font-size: 10px;

            }
            canvas { 
                background-color: #000000;
                display: block;
                position: absolute;
                top: 0;
                bottom: 0;
                left: 0;
                right: 0;
                align-self: center;
                justify-self: center;
                height: 90vh;
                width:auto;
           
}