Re: Questionable implementation of IMG ALT attribute as tooltips

Chris Maden (crism@ora.com)
Mon, 26 Jan 1998 10:06:23 -0500


Date: Mon, 26 Jan 1998 10:06:23 -0500
Message-Id: <199801261506.KAA06519@geode.ora.com>
From: Chris Maden <crism@ora.com>
To: www-html@w3.org
In-reply-to: <SIMEON.9801261055.B@s1682.essex.ac.uk> (message from James Green
Subject: Re: Questionable implementation of IMG ALT attribute as tooltips

[James Green]
> So the "" *does* work then??! Do you *know* that it is valid syntax?

It's valid syntax.  The null string satisfies a CDATA restriction for
an attribute type.

> My my, I presume you've not heard of HTML 4.0 then? The ALT
> attribute is a requirement.

Yes, and the null string satisfies the requirement.  What is required
is that *something* is specified, and specifying nothing is different
from not specifying anything.

The requirement is that the Web page designer think about what he is
doing.  If no alternative text is appropriate after thinking, then
that should be specified.

-Chris
-- 
<!NOTATION SGML.Geek PUBLIC "-//Anonymous//NOTATION SGML Geek//EN">
<!ENTITY crism PUBLIC "-//O'Reilly//NONSGML Christopher R. Maden//EN"
"<URL>http://www.oreilly.com/people/staff/crism/ <TEL>+1.617.499.7487
<USMAIL>90 Sherman Street, Cambridge, MA 02140 USA" NDATA SGML.Geek>