Original: A style that has been particularly associated with Teotihuacan is known as talud-tablero, in which an inwards-sloping external side of a structure (talud) is surmounted by a rectangular panel (tablero).
Simplified: A style that has been particularly associated with Teotihuacan is known as talud-tablero. In this style, an inwards-sloping external side of a structure (talud) is below a rectangular panel (tablero).