Responsive problems on my homepage (Genesis framework)

Hi,

I'm using a responsive theme (on the Genesis framework) but my homepage is quite a mess when using a smartphone.
You can see what happens here:
http://creersonsite.net/
- Texts inside buttons tend to show up outside the buttons,
- Same problem with columns (in the "Comment créer son site gratuit ?" part of the page... this is awful :slight_smile: ). Columns don't show up very nicely in general on this page.

Any help to fix that would be highly appreciated!

Best Regards