HTML and CSS Reference
Figure 2-2. The initial Register page
If you enter an invalid email address you should see the error message shown in
Figure 2-3 when the page is submitted.
Figure 2-3. The invalid email error message
Close the browser and stop debugging.
Try viewing this page with several different browsers. Notice that the email
validation message looks different in each. In Firefox this will look like Figure 2-4
and in opera it looks like Figure 2-5 .