Autorisation du tag "style" dans le html

app/views/events/show.html.haml

@@ -60,7 +60,7 @@
   - markdown = Redcarpet::Markdown.new(Redcarpet::Render::HTML, autolink: true, tables: true)
   = description sanitize markdown.render(@event.description),
     tags: %w(p br table tr th td ul ol li a strong b em i img),
-    attributes: %w(href src width height)
+    attributes: %w(href src width height style)
 
 %h3=t '.infos'
 %p