The CoGro Musings chat room is read only (employees only) and very often frozen, as it is right now.
The full site theme shows only:
This room is frozen; new messages cannot be added.
Which is fine, however this is what I saw in the new mobile chat design when viewing on my mobile device: (LG G3)
I was not able to reproduce on a desktop computer with the mobile theme, only on mobile device.
Full details: LG G3, Android 5.0, Chrome 49