body{font-family: "Comic Sans MS";text-align: center;}
  #koko {margin: auto; text-align:left;  width:900px}
  #asunto td {text-align:center}
  th {background:#FFFF99 }
  table {table-layout:fixed}
  caption {font:bold;color:blue;}
  #asunto col {background:#f0f8ff}
  #header h2{line-height:2;margin:0; width:900px;
       text-align: center;background: #FFFF99}
  #footer{clear:left;width:900px;background: #FFff99}
    #footer p{margin:0;text-align: center;font:x-small}