Mark Stewart struck in stoppage time as Raith Rovers kept the pressure on the Ladbrokes Championship pacesetters with a 1-0 win over Queen of the South.Queen of the South dominated for large stretches of the game but the victory sees Raith climb up to third in the table, while the Doonhamers slip down to fourth place.Stephen Dobbie was wasteful in the first half as the visitors enjoyed the bulk of the possession.And they picked up where they left off after the interval with Jake Pickard and Chris Higgins going close to breaking the deadlock with headers.But with time running out Stewart got on the end of a cross from Rudi Skacel to fire home the winner.