"Nothing," I said, quite automatically hiding my worry.
It will cause all of the toolbars below the tabs to automatically hide when they aren't in use.
When it's active, bringing one window to the front automatically hides every other window.
These tools are surfaced as floating windows which can be set to automatically hide when unused or docked to the side of the screen.
It is also more customizable with tool windows that automatically hide when not in use.
This configuration made me automatically hide my ruthlessness behind a mask of indulgence and laxness.
In Usenet, the form feed character is used by several newsreaders as a "spoiler character", causing them to automatically hide the following text until prompted, as a way to prevent spoilers from being inadvertently revealed.
Although Windows automatically hides unused icons after a period of time, it can still get crowded down there, especially because many programs add their icons when you install them.
The Unity dock will automatically hide when there is a maximized window open on the desktop or when a floating window is positioned in a place that would partially obscure the dock.
The Unix VNC viewer in SSVNC automatically hides the scratch region.