Added the site map back to the bottom of the mobile page design, since I can't reliably use a fixed header. Can't decide yet whether to remove the 'Contact' nav menu option, since the social media links include an email icon. I've also restructured the list options in '_lists.sass' to allow for different list styles in the nav menu and the site map (one link per line vs. multiple links per line). This still has not solved the problem of my dividing line not showing up next to links in my site map, even though I have moved the relevant CSS to '_footer.sass'.