td.hd
{
    font-weight: bold;
}

td.c
{
    text-align: center; 
}

td.l
{
    text-align: left; 
}

td.w
{
    background-color: #090;
    color: white;
    font-weight: bold;
}

td.n
{
    background-color: #c00;
    color: white;
    font-weight: bold;
}

table
{
    border-collapse: collapse;
}

#chart td
{
    border: 1px solid #000;
    margin: 0px;
    padding: 2px;
}

tr.bg1
{
  background-color: #ffc;
}

tr.bg2
{
  background-color: #ccc;
}

tr.bgh
{
  background-color: #fc9;
}

#explain
{
  text-align: left;
  padding: 10px;
  width: 600px;
}

#explain span
{
  font-weight: bold;
}