Widget Rules issue.

[piotrkunicki]

ref. https://www.gavick.com/forums/music-state-wp/confused-with-the-overall-template-navigation-and-layout-34208.html?p=168829#p168829

Problem occurs when I set widget in the sidebar (visible only for mobiles and there's only one widget in the sidebar). In this case on the desktop view there's blank space on the sidebar. onlySmartphones class hides widget, but not all sidebar.