A hinge includes a base, a crank, a bottom board, a crank engagement seat, and a fixed seat. The crank is pivotably connected to the base. The bottom board includes at least one retaining portion, a first rivet hole and a vertical elongated hole. The crank engagement seat is connected to the crank and located between the fixed seat and the bottom board. The crank engagement seat includes first and second through-holes and a second rivet hole. The fixed seat includes first and second adjusting holes. A first adjusting member is extended through the first adjusting hole and the first through-hole into the first rivet hole. A second adjusting member is extended through the second adjusting hole into the second rivet hole. The bottom board and the crank engagement seat can be slightly moved in the vertical direction. The crank engagement seat can be slightly moved in the horizontal direction.