[Typo3] Problem encountered on upgrade frpm 3.7.1 to 3.8

[Rupert Germann]

Chris Watt wrote:
> I have updated a Typo site from 3.7.1 to 3.8. Everything nearly working OK
> after some intial problems. The only problem I can't solve now is that all
> the text that uses Headings via RTE is now displaying as <h4 class="">the
> text that should be heading 4 font</h4>  instead of using the h4 style. My
> css has not changed. No matter waht I try I can't get it to display in the
> heading font styles as it did in 3.7.1.
> Anyone got any ideas of where to look?

I'd guess the change was made in css_styled_content which is now a system
extension. Try installing the css_styled_content version from TER or from
the installation where it worked. 

greets
rupi