.df /*departure flight*/
{
   background-color:#DCDCDC;
   color:#000000;
}
.sdf /*selected departure flight*/
{
   background-color:#ADADAD;
   font-weight:bold;
}
.rf /*returning flight*/
{
   background-color:#A7DFA7;
   color:#000000;
}
.srf /*selected returning flight*/
{
   background-color:#D5D5D5;
   font-weight:bold;
}