I'm new to muse, and I'm having a difficult time with my responsive menu. (Its driving me kind of crazy) Once I start moving to the fluid break points all the contents of my page simply scroll down the page instead of staying fixed in place and resizing to the proper height/width. I've had them pinned, and set them to be responsive. I'm just not sure what else to do.
As always: Give us a small(!!!) .muse file, including only one page and only the element, which are necessary to demonstrate your issue. Please follow these instructions: https://forums.adobe.com/docs/DOC-8652