body {
                margin: 0;
                padding: 0;
              background: #fff;
			  
                overflow: hidden;
            }

            #windowdisplay {
                position: fixed;
				
                top: 0;
                right: 0;
                bottom: 0;
                left: 0;
                background-color:white;
				
                display: flex;
                justify-content: center;
                align-items: center;
            }

            #windowdisplay canvas {
				
                object-fit: contain;
				
                max-height: 100%;
                max-width: 100%;
            }