Possible to make minicart auto adjust size?

The minicart works fine but when I add several products I get the scroll bars - is it possible to remove these, especially the left to right scroll bar?

minicart.JPG

Also, where do I edit the content and css for this module?

Thanks in advance.

Sorry, but it is not possible to make it to adjust its length at the moment.
If it goes to css - you can always use firebug/chrome devtools and override.css to create custom styling.