body,canvas
#root,html{width:100%;height:100%;margin:0;padding:0}body{background:#f0f0f0}a{color:inherit;text-decoration:none}*{box-sizing:border-box}h1{font-size:2rem;text-align:center}*{margin:0;padding:0}canvas{display:block;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}