title text: hyphen wont show

Hi there. I am editing a website (version 7.1) in german, so far i managed to add hyphenation CSS settings as found here  in the forum (link below)  – which works, but only for the body text. 
I'm still having issues with some titles. The title of the column on the right breaks onto two lines, when the browser width is narrow. But it does so without hyphenation, an absolute no-go in german… here's a screenshot:
 

any ideas how to fix this, so it shows a hyphen when this happens? I'm clueless when it comes to code… so thank you for your help and suggestions!

this is the code i referred to above:

The 'p' in that code stands for paragraph, which is a specific text type different than headings. If that code works, then try adding 'a' as well:

a, p {

    -webkit-hyphens: auto !important;

       -moz-hyphens: auto !important;

        -ms-hyphens: auto !important;

            hyphens: auto !important;

  }

hi there!
thanks for the reply, but sadly it did not work… 😞
is there another way i can refer to the headlines...?

That was gonna be next. Glad it worked.