H1 on category page

Author

Message

Phil

Posted: 9/4/2015

Hi everybody

I 've got a problem on category page.
I've got 50 H1....
How to have all the title of post in H2 on category page but i want to keep the title in H1 on post page

http://www.mainfrais.fr/nos-realisations/

Thanks for help

Phil