When you delete a frame from a frames page, the page shown in that frame is deleted, but the remaining content of the frames page is not. Whatever page was in the deleted frame disappears from that frameset but is still in your web site folders. After you delete a frame, the remaining frames expand to fill the space left by the frame you removed.
Note If the frames page contains only one frame, you cannot delete that frame. The page shown in the remaining frame will occupy the entire browser window when viewed by a visitor to your site.