I have uploaded alternative CSS in SharePoint online site for HIDING navigation bar and title bar in master page, without touching/editing master page.
Correctly working in "Site Settings.aspx" page and "Home.aspx" page, but NOT working in "Site Contents.aspx" page, lists, library and my custom pages.
CSS i have uploaded in /_catalogs/masterpage
I don't know why this behavior. Please help me ASAP, its very urgent.