#blackboard{width:320px;height:180px;background:#333;float:left}
.starcell{width:20px;height:20px;display:block;float:left;text-align:center}
.selected{font-weight:bold}
.wall{background-image:url(../themes/HP48/tex_wall.png);color:#000}
.ball{background-image:url(../themes/HP48/tex_ball.png);color:#99f}
.cube{background-image:url(../themes/HP48/tex_cube.png);color:red}
.ball_selected{background-image:url(../themes/HP48/tex_ball_selected.png);color:#99f}
.cube_selected{background-image:url(../themes/HP48/tex_cube_selected.png);color:red}
.gift{background-image:url(../themes/HP48/tex_gift.png);color:yellow}
.void{background-image:url(../themes/HP48/tex_empty.png);}
.selected{background:#555}