A prepopulated text field with a maximum length
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/> <title>A prepopulated text field with a maximum length</title> </head> <body> <form method="post" action=""> <p><label for="zip">Change your ZIP code <em>(maximum 5 characters)</em></label> <input type="text" id="zip" name="zip" size="5" maxlength="5" value="94710" /></p> </form> </body> </html>