Are there any available open source CMS's out there that output valid html 4 ?

So far, the only one I've found is the excellent tangocms.

However, although tango is simple enough for me to use, I'd like something simpler for use by non-programmer clients.

Silverstripe can be made to use html 4 templates, but one needs to be a very good php programmer in order to implement it.

From serverfault $pageUsers[$entry.posts[0].author].name

• I had good result using Drupal and Wordpress.

  Wordpress is more of a blog engine but Drupal on the other hand is versatile and quite mature and stable, you can easily add an administration section for clients. There is also a lot of useful modules to choose from.

  As for valid HTML, I've never had this kind of issue.

  Good luck!

  EDIT HTML4 is already 10 years old so you might want to look at old CMS. Any CMS still using HTML 4 is unlikely to be popular.

  Arjan : XHTML is over 10 years old as well...

  Chris S : What do you think is broken about xhtml? What specific features are you using?

  artifex : We are using drupal. While it may be heavy, knowledge wise, when you implement it. People with basic html(or even less) knowledge can use your product, if done properly.
  From Embreau

• I've used http://ckeditor.com/ before, and it's pretty easy to use for non-techies.

  If you want something to manage your entire site, Wordpress is about as simple as they come to get going, and has lots of extensions that do a variety of clever things.

  From Will

• Have you considered Plone? It validates.

  From

• Isn't the reason why xhtml appears broken in IE because IE won't adhere to certain html standards, or wont follow those standards? For instance, if you view the code in IE it appears broken, but in Firefox or Opera it doesn't.

  Back to the original post; is it possible you could just use a different Internet Browser and then it wouldn't matter if xhtml was used?

  Jason Antman : Most of the web development world is moving to XHTML. Very rapidly. At the moment, it's considered the de-facto minimum standard for sane development. Are you using a recent version of IE? Are you trying to do something very strange with the page? My personal site and blog are valid XHTML 1.1 Transitional, and appear fine in IE8 (or so I'm told, I've never used it...)

  Webs : My statment was more to the OP than anything else. I dont' use IE so I don't have any problems ever viewing XHTML. But users that view my website in IE have a much different experience. So my question to the OP was can he use something else?
  From Webs

• MODx gives you 100% control over the HTML, including the HTML that the various widgets, plugins, etc. output, so the quality of the HTML output is entirely within your control. Drupal is the same way, other than what comes out of the WYSIWYG editors. Those are all plugins, so it's up to you to pick one that is good for your needs.

  J.Ja

  From Justin James

• I'm a long-time user & fan of Textpattern, and have used its tag-based template system to produce valid HTML4, XHTML (1.0 & 1.1), and HTML5 sites. There may be certain tags and/or plug-ins that prefer to render more modern, XHTML-like, code at this point, but you should still be able to generate valid HTML4 relatively easily.

  From morgant