citation-style-language/styles — pull request #593 by pietsch (2013-06-03 14:32:08+00:00)
Title: In AMA styles, put a div around citation number so it can be styled.

I would like to style citation numbers with CSS (in order to make them disappear). Many numeric styles wrap them in a div class="csl-left-margin" for easy selection in CSS -- but not the AMA styles. This patch corrects this by adding second-field-align="flush" to the bibliography element.