#intestazione  {width: 800px; height: 50px; }
h2             {color: #c00;}
#corso   {font-size: large; text-transform: uppercase }
#label   {font-size: x-large; color:#0000FF; font-weight:bold}
#opzioni {background-color: #1010DA}
#na      {font-weight:bold; color:#FF0000}
TABLE {border-collapse: collapse; border: 1px solid black}
TH    {background-color: #FCD1FC; text-align: center; border: 1px solid black; padding:5px}
TD    {background-color: #FAFCAC; text-align: center; border: 1px solid black; padding: 5px}