table.gakugei
{
  width: 100%;
  border-collapse: separate;
  border-spacing: 1px;
}

table.gakugei th
{  
  background-color: #ececec;
}

table.gakugei td
{
  border-bottom-width: 1px;
  border-bottom-style: dotted;
  border-bottom-color: #c7c7c7;	
}