5f7b7f24d6
Summary: Fixes T7609. When we moved the sidenav background to z-index -1, the footer then reappeared. Make the hiding more specific in CSS. Test Plan: test mobile layout of homepage, check footer still exists on all other pages. Reviewers: btrahan, epriestley Reviewed By: epriestley Subscribers: Korvin, epriestley Maniphest Tasks: T7609 Differential Revision: https://secure.phabricator.com/D12138