.small
{
  font-family: Arial, Helvetica, sans-serif; 
  font-size: 10px; 
}

.normal
{
  font-family: Arial, Helvetica, sans-serif; 
  font-size: 12px; 
}

.big
{
  font-family: Arial, Helvetica, sans-serif; 
  font-size: 14px; 

}

.big2
{
  font-family: Arial, Helvetica, sans-serif; 
  font-size: 16px; 
}

.head
{
  font-family: Arial, Helvetica, sans-serif; 
  font-size: 20px; 
}