Scroll bars are horizontal or vertical bars that show both mouse and keyboard users how far into the file they've gone. You use these bars with a mouse to scroll the contents of the window.
- Click the arrow at either end to scroll one line at a time. (Keep the
mouse button pressed to scroll continuously.)
- You can click the shaded area at either end of the scroll box to scroll
the window one page (windowful) at a time.
- You can drag the scroll box to any spot on the scroll bar to quickly
move to a spot in the window relative to the position of the scroll box.