.zero {background-color: #ffffff; color: #000;}
.one {background-color: #ff0000; color: #000;}
.two {background-color: #ffc000; color: #000;}
.three {background-color: #ffff00; color: #000;}
.four {background-color: #00b050; color: #000;}
.five {background-color: #0070c0; color: #fff;}
.six {background-color: #cc00cc; color: #fff;}
.seven {background-color: #000000; color: #fff;}
.nine {background-color: #111111; color: #fff;}

.lt-zero {background-color: #ffffff; color: #888;}
.lt-one {background-color: #ffc0c0; color: #888;}
.lt-two {background-color: #fff0c0; color: #888;}
.lt-three {background-color: #ffffc0; color: #888;}
.lt-four {background-color: #00ff80; color: #888;}
.lt-five {background-color: #c0f0ff; color: #888;}
.lt-six {background-color: #ffaaff; color: #888;}
.lt-seven {background-color: #ffeeee; color: #888;}
.lt-nine {background-color: #ffffff; color: #888;}