The item id exists as data attribute or as element.id postfix on multiple
elements in an article.
The basic idea is to traverse the DOM tree - starting from the event firing
element - in reverse order till an article element is found.
This article element is passed to the JavaScript functions. These JavaScript
functions are getting the elements which they want to manipulate starting from
the article utilizing the JavaScript querySelector function.
The bootstrap themes had a conflicting and unused class style definied, which is
removed by now.
Unified the page-counters before.
This makes processing of counters in javascript way more easier. The minimum
required browser versions for the needed CSS3 selectors are IE9, Firefox 3.5
and Chrome 5. Confirmed working with IE9, Firefox 24.6, Chrome 36, Mobile Safari
on iOS6.
An unintended side effect of CSS brackets is that theme designers are able to
implement there idea of brackets.
