The ribbon is displayed horizontally or vertically.
The horizontal ribbon is displayed across the top of the file window. You can dock the vertical ribbon to the left or right of the file window.
The vertical ribbon can also float in the file window or on a second monitor.
The ribbon is composed of a series of panels, which are organized into tabs labeled by task. Ribbon panels contain many of the same tools and controls available in toolbars and dialog boxes.
Some ribbon panels display
a dialog box related to that panel. The dialog box launcher is denoted
by an arrow icon, 
, in
the lower-right corner of the panel. The dialog box launcher indicates
that you can display a related dialog box. Display the related dialog
box by clicking the dialog box launcher.
To specify which ribbon tabs and panels are displayed, right-click the ribbon and, on the shortcut menu, click or clear the names of tabs or panels.
If you pull a panel off of a ribbon tab and into the drawing area or onto another monitor, that panel floats where you placed it. The floating panel remains open until you return it to the ribbon, even if you switch ribbon tabs.
An arrow in the middle
of a panel title, 
, indicates
that you can slide out the panel to display additional tools and
controls. Click on the title bar of an open panel to display the
slideout panel. By default, a slideout panel automatically closes
when you click another panel. To keep a panel expanded, click the
push pin, 
, in
the bottom-left corner of the slideout panel.
When you select a particular type of object or execute some commands, a special contextual ribbon tab is displayed instead of a toolbar or dialog box. The contextual tab is closed when you end the command.
Checkboxes allow you to toggle an option on or off. A third, indeterminate state occurs if the setting differes for multiple objects.
Depending on the available space in the vertical or horizontal ribbon, radio buttons can collapse into a single button. A single radio button works as a toggle, allowing you to cycle through each item in the list, or as a split button, where the top half of the radio button is a toggle button and clicking on the arrow icon in the lower half displays a drop-down of all items in the list.
When an option can be executed with varying intensity, the slider allows you to control the setting from lower to higher, or reverse.
