Chanuka: Candles: What To Light: Menora Shape

All eight candle holders of a chanuka menora must be on the same level. The menora itself may be curved horizontally.
The shamash must be slightly raised or lowered or to the side of the menora or in the center, as long as it clearly is not part of the other eight candles.
Note You may put oil lights directly onto a windowsill or other level surface, but candles must be in or on some type of holder.