Gravatar Problem & mobile Display of Comments

Hello,

I have 2 problems actually:

1. Gravatar is only shown correctly on blog posts. Not on Pages. Like the url I gave you. There seems to be an image, but all is white?
2. Comments on mobile devices look terrible. The comment text has not enough space. I would like to show the comment text under avatar / name / meta. How doing this?

Thank you very much.

Kind Regards

Ronny

The page I need help with: [log in to see the link]