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figure 6-67
marking required fields
the custname fie l d
is required
the email and
receipt fields are
both required
5. Save your changes to the file and then refresh survey.htm in the Opera or Google
Chrome browser.
6. Leaving the form blank, click the Submit My Survey button. As shown in
Figure 6-68, in the Google Chrome browser for Windows, the browser does
not submit the form but displays an error message for the first invalid field it
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