Using <br/> in Intro content slides

Hi,
can i divide precisely on two or three lines textual content that are over the intro slide?
If you see my attached image, the first line of text is too long. I'd like to divide it in three lines.
I tried adding <br>, <br/>, <br /> into the content editor but it was useless.

The only way I found is editing max-width attribute in
/modules/mod_image_show_gk4/styles/gk_creativity/style.css
but i can't divide the text where i want.

Thank you.

Right now max width is the only available option. for security reasons, html in titles are blocked.