You could send them back a note saying, as politely as you can manage, that the syntax you're entering and the CMS is refusing is valid HTML, and that their suggested fix is not good HTML, even though the CMS accepts it, as shown by the validator.
It may fit some local DTD, but HTML is not SGML, and you presumably are working on something that will be seen by outsiders and run through browsers that don't have your DTD.
[It's too early in the morning for me to find the politic phrasing; some mention of the fact that you know they didn't create the CMS might help.]
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Date: 2007-03-20 12:07 pm (UTC)It may fit some local DTD, but HTML is not SGML, and you presumably are working on something that will be seen by outsiders and run through browsers that don't have your DTD.
[It's too early in the morning for me to find the politic phrasing; some mention of the fact that you know they didn't create the CMS might help.]