[(#REM) Cf.: http://paulirish.com/2008/conditional-stylesheets-vs-css-hacks-answer-neither/ ]
[(#CONFIG{pages_jeu_concours}|=={on}|oui)
] [(#CONFIG{pages_jeu_concours}|=={on}|oui)
] [(#CONFIG{pages_jeu_concours}|=={on}|non)
]