/**
 * Set game display styles
 **/
body {
 height: 100%;
}

button {
 float: left;
}

#game {
 clear: left;
 margin: 0 auto;
 margin-top: 20px;
 width: 440px;
 height: 225px;
 border: 5px solid #000;
 padding: 0 10px 10px 0;
 background: #fff;
}

#game button {
 width: 97px;
 height: 62px;
 border: 2px solid #000;
 margin: 10px 0 0 10px;
 font-size: 0;
 text-indent: -5000em;
}

#game .yui-button-focus button {
    border-color: #0f0;
}

#game .yui-button-checked button {
    border-color: #f00;
}