* { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }
html, body {
  width: 100%; height: 100%;
  overflow: hidden;
  background: #b8a882;
  display: flex; justify-content: center; align-items: center;
  font-family: 'Courier New', Courier, monospace;
}
canvas { display: block; touch-action: none; cursor: default; }