div.navigation      {padding: 5px;
                     margin: 20px}

div.introduction    {padding: 5px;
                     margin: 20px }

h1                  {background-color: #ccff33;
                     padding: 5px;
                     margin: 20px;
                     text-align:center }

h2                  {background-color: #ccff33;
                     padding: 5px;
                     margin: 20px;
                     text-align:center }

div.paragraph       {background-color: #ffffcc;
                     padding: 5px;
                     margin: 20px}

h2.ptitle           {background-color: #ffcc66;}

div.ititle          {font-size: 14px;
                     font-weight: bold;
                     margin: 20px 0px 2px}

div.lastupdate      {text-align:right}

table.spectable     {width:90%;
                     margin:0px 10px}

td.specitem1        {width:15%}

div.fig             {margin: 10px 0px 10px;
                     text-align: center}