Mobile bug

When adding a description to the marker on the Pro Version. I view on mobile (iPhone) and the text, more details and view directions extends past the white div background and overlays the map making it unreadable. Is there a quick fix for this.

I presume a <br style=”clear:both;” /> needs to be added at the end of the content or maybe the white background div has a max height set somewhere.

Can you give me a clue the best edit in the code to fix this please

thanks