body  {background-color:#C0C0C0
   }

   table{width: 80%;
     margin: 0 auto 0 auto;
     border-style: solid;
     border-width: thin;
     border-color: black;
     border-collapse: collapse;
   }

   td {border-style: solid;
   border-width: thin;
   border-color: black;
   border-collapse: collapse;
   height: 2em;
   text-align:center;
   width: 20%;
   }

   caption {
   height: 2em;
   }