In the offline template, the floating elements in the navigation bar
interfere with the layout of any elements displayed next to it. In
particular, subtitles used for example files and nested class
documentation have wrong horizontal position.
This change adds CSS for the subtitles to be displayed as block
elements, and disallows floating elements on the left side - TOC
is still allowed to float on the right side.
Task-number: QTBUG-40924
Change-Id: I89be3844985e6cf95263db575768034d9270d140
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>
f286e0813b