html{margin:0;padding:0;height:100dvh;overflow:hidden}body{margin:0;padding:0;height:100%;background-color:#000;display:flex;flex-flow:column;overflow:hidden}body>canvas{min-height:0;flex-grow:1;flex-shrink:1;flex-basis:0;overflow:hidden;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}