#box{text-align:center;}
#box #metà_sx{overflow:hidden;float:left;width:49%;}
#box #metà_dx{overflow:hidden;float:left;width:49%;}
#box #metà_sx label{text-align:left;margin-left:50px;}
#box #metà_dx label{text-align:left;margin-left:50px;}
#box .giallo{background:#ffffcc;margin-left:0;}
#box #commento{margin-top:-10px;}