Why won't my content stay centered?
The menu to the left of the browser creates a new center for your site. In order for your content to be aligned, you should re-register your center by using the guidelines rather than the true center of the page.
Where do I edit the accordion within the smaller breakpoint menu?
To edit theof the Responsive Muse Menu, double-click on the Main widget found within the Menu container. To add more tabs or edit the text of the tabs, use the Tab widgets found outside of the Menu Container. The tabs should stay outside of the Menu Container.