.gstar{float:left;width:100%}
.gstar #blackboard{width:320px;height:180px;background:#333;float:left}
.gstar #blackboard .starcell{width:20px;height:20px;display:block;float:left;text-align:center}
.gstar #blackboard .wall{color:#000}
.gstar #blackboard .ball{color:#99f}
.gstar #blackboard .cube{color:red}
.gstar #blackboard .ball_selected{color:#99f}
.gstar #blackboard .cube_selected{color:red}
.gstar #blackboard .gift{color:yellow}
.gstar #blackboard .void{}
.gstar aside{float:left;height:140px;width:120px;padding:20px;background:#ddd}