[css] cleanup and fix by removing display: block on <a> in boxes
also, add class a.action to ease action links like [+] in boxes
like bookmark box without having to refine css per box id.
Document: cubicweb-doc
Title: CubicWeb documentation
Author: Logilab
Abstract: Some base documentation for CubicWeb users and developpers
Section: Apps/Programming
Format: HTML
Index: /usr/share/doc/cubicweb-documentation/index.html
Files: /usr/share/doc/cubicweb-documentation/*.html