Deprecated function: Array and string offset access syntax with curly braces is deprecated in include_once() (line 20 of /home/sylvain/public_html/portfolio/includes/file.phar.inc).
I will give this 45 minutes session at Drupalcamp Montreal 2013:
"CSS: Le coffre à outils pour développeurs front-end" (CSS: The Toolbox for Front-End Developers)
(PDF version available on request)