[giantrobot]

Some drawing systems take coordinates in x,y but the origin is top left. Ascending coordinates go down and right. Then other systems have an origin at the bottom left so ascending coordinates go right and up. There's good reasons for both depending on the context and nature of the drawing.

[__jonas]

> Some drawing systems take coordinates in x,y but the origin is top left

Right, as I said, top left coordinate system makes sense to me (like in the browser), so does bottom left (like in OpenGL) it's just the fact that CSS expects (y,x) not (x,y) for margins and padding short-hands, regardless of the coordinate system that confuses me.

[bryanrasmussen]

>top left coordinate system makes sense to me

top left is where reading is assumed to start in Western societies, maybe other systems have the same because of the natural feeling this inspires.