Move a brush stroke inside or outside a path

Centered stroke, stroke inside, and stroke outside
Use
the Stroke pop-up menu in the Stroke Options window to move brush strokes
from the default position (centered on a path) to another location.
In the Tools panel or Property inspector, click the Stroke
box to open the color swatch pop-up window.
At the bottom of the pop-up window, select either Inside
Path or Outside Path from the pop-up menu.
(Optional) Select the Fill Over Stroke option.
The
stroke normally overlaps the fill. Selecting Fill Over Stroke draws
the fill over the stroke. When Fill Over Stroke is used with an
object with an opaque fill, any part of the stroke that falls inside
the path is obscured. A fill with a degree of transparency may tint
or blend with a brush stroke inside a path.