/* fichier en */
#main-nav li a.accueil				{ background:url(../images/buttons/btn-menu-principal.gif) no-repeat 0 0; width: 77px; }
#main-nav li a.q-s-nous				{ background:url(../images/buttons/btn-menu-principal.gif) no-repeat -77px 0; width: 94px; }
#main-nav li a.apercu				{ background:url(../images/buttons/btn-menu-principal.gif) no-repeat -171px 0; width: 177px; }
#main-nav li a.etudes-doc			{ background:url(../images/buttons/btn-menu-principal.gif) no-repeat -348px 0; width: 178px; }
#main-nav li a.salle-presse			{ background:url(../images/buttons/btn-menu-principal.gif) no-repeat -526px 0; width: 113px; }


#main-nav li a:hover.accueil		{ background:url(../images/buttons/btn-menu-principal.gif) no-repeat 0 -27px; width: 77px; }
#main-nav li a:hover.q-s-nous		{ background:url(../images/buttons/btn-menu-principal.gif) no-repeat -77px -27px; width: 94px; }
#main-nav li a:hover.apercu			{ background:url(../images/buttons/btn-menu-principal.gif) no-repeat -171px -27px; width: 177px; }
#main-nav li a:hover.etudes-doc		{ background:url(../images/buttons/btn-menu-principal.gif) no-repeat -348px -27px; width: 178px; }
#main-nav li a:hover.salle-presse	{ background:url(../images/buttons/btn-menu-principal.gif) no-repeat -526px -27px; width: 113px; }

.info-travaux 	  					{ display: block; background: url(../images/buttons/btn-travaux.gif) top left no-repeat; width: 160px; height: 25px; }