Checkboxes are for questions in which you have a range of possible answers and the correct selection for the user may be from none, all, one or some of them. An example of a question appropriate for checkboxes might be asking the user what ice cream flavours the user likes:

1. <fieldset>
2. <legend>What flavors of ice cream do you like?</legend>
3. <label for=“vanilla” accesskey=“v”>Vanilla</label>
4. <input type="checkbox" name="vanilla" id=vanilla" />
5. <label for=“chocolate” accesskey=“c”>Chocolate</label>
6. <input type="checkbox" name="chocolate" id=chocolate" />
7. <label for=“strawberry” accesskey=“s”>Strawberry</label>
8. <input type="checkbox" name="strawberry" id=strawberry" />
9. </fieldset>

(Note that some of the accesskey shortcuts used above would conflict with the input for “city” made in our text input example.)

A checkbox can be turned “on” or checked by default by adding a checked = “checked” attribute to the tag. Be careful when doing so, however (just as you would be when using the same code with a radio button), as this comes close to “implied content”. (An example of implied consent: the statement “if a woman doesn’t say no, she means yes”.)