.tk3 { position: relative; width: 100%; height: 100%; min-height: 0; overflow: hidden; background: #000; outline: none; user-select: none; -webkit-user-select: none; cursor: default; }
.tk3 canvas { position: absolute; left: 0; top: 0; width: 100%; height: 100%; display: block; }
.tk3 canvas.tk3-hud { z-index: 1; }