Available Attributes

Attributes are applied to elements to expose app state information to CSS

Attribute Pattern	Values	Description
body[video-playing]		Is a music video playing?
body[focus-state]	focused blurred	Focus state of the window
body[playback-state]	playing paused	Current playback state
#app[window-style]	default - Cupertino twopanel - Redmond	Window Layout Style