Datasheet
  Using the Ribbon  19
than 1325 pixels. When the width is too narrow to display each panel fully, the 
panels will begin to collapse first by replacing the panels with a single button 
bearing the name of the panel.
Large Tool Icon
(button)
Collapsed Ribbon Panel
Small Tool Icon
(button)
Panel
Ribbon Tabs
FIGURE 1.18   The Ribbon fully displaying all panels (top) and with partially and 
completely collapsed panels (bottom)
The Ribbon itself can be divided into three parts—tools, panels, and tabs:
Ribbon  Tools     The individual icons and various drop-down lists found on the 
Ribbon are known as Ribbon tools. Clicking any of these tools launches the 
command associated with it.
Ribbon  Panels     Similar tools are grouped together into a series of Ribbon 
panels. For instance, the Move, Erase, and Rotate tools modify objects. 
Consequently, each of these tools is found on the Modify Ribbon panel.
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