35     f32 bottom;   //  member
51       bottom(0)  in Rect()
67       bottom(b)  in Rect()
78       bottom(v.bottom)  in Rect()
105     f32     GetHeight() const { return bottom - top; }  in GetHeight()
133     void    SetHeight(f32 height) { bottom = top + height; }  in SetHeight()
145         bottom = y + GetHeight();  in MoveTo()
160         bottom  += dy;  in Move()
176         bottom  = y + height;  in SetOriginAndSize()
189         const f32 b = bottom;  in Normalize()
194         bottom  = (b - t) >= 0 ? b : t;  in Normalize()