body{background-color:#000;-webkit-animation:fade-in both 1.5s .5s ease-in;-o-animation:fade-in both 1.5s .5s ease-in;-moz-animation:fade-in both 1.5s .5s ease-in;animation:fade-in both 1.5s .5s ease-in}@keyframes fade-in{from{opacity:0}to{opacity:1}}#board{width:640px;height:480px;margin:auto}canvas{border:10px solid #fff}pre{margin:10px -5%;color:#888}