Adding a border

• Open a document called Borders and shading.

• Click within the header (containing the words Computer Memory).

• Within the Paragraph section on the Home tab, click on the Down arrow to the right of the Border icon.  This will display a drop down list from which you can select the type of border you wish to apply.  In this case select the Outside Borders command.
  
  
  
  A border will be applied around this paragraph.
  
  
  

• Click within the next paragraph.  Apply a bottom border to this paragraph.  Click on the Undo icon to remove this border.  Experiment with applying some of the other border types (after each time click on the Undo icon).