Mousercise: page 21  
The squares below are called check boxes.  Click on them.

Checkbox 1 Checkbox 2 Checkbox 3 Checkbox 4
 

 Notice that:

  1. Clicking an empty box puts a check mark in the box

    2.  
  2. Clicking a checked box removes it's check mark.

    3.  
  3. More than one box can be checked at a time.


To move to next page, click this check box -->22