*{
                user-select: none;
            }
            html, body {
                overflow: hidden;
                background-color: #000;
            }
            body {
                margin: 0;
                position: fixed;
                width: 100%;
                height: 100%;
            }
            canvas {
                width: 100%;
                height: 100%;
            } 
            .canvas_loader{
                margin:0;
                overflow:hidden;
                top:0;
                left:0;
                width:100%;
                height:100%;
                position:fixed;
                background-color:rgba(30,30,30,1.0);
                color:#666;
            }
            .canvas_loader div{
                margin:0;
                background-color:#333;
                color:#777;
                font-family:sans-serif;
                font-size:11px;
                padding-left:15px;
                padding-top:12px;
                width:100%;
                height:25px;
            }