Have text for play link so it can be clicked by non-css browsers.

This also removes the explicit height on the containing div,
in order so it can be sized automatically and doesn't look
horrible in the case that no-inline css was loaded.

Change-Id: Ida2e880d069027b49ed2fef6286071baa4996b8a
Merge "Have text for play link so it can be clicked by non-css browsers."