.textebc2_12{
	float:left;
	padding:15px 9px 15px 9px;
	width:675px;
}
.alphabet{
	float:left;
	height:26px;
	margin:0px 0px 30px 0px;
	padding:0px 0px 0px 5px;
}
.lettre{
	float:left;
	width:26px;
	height:26px;
	background-image:url(../images/b2c_12/fond_lettre.gif);
	padding:6px 0px 0px 9px;
	font-size:12px;
	:"\"}\"";
	width:17px;
	height:20px;
}
.alphabet_gauche{
	float:left;
	width:3px;
	height:26px;
	background-image:url(../images/b2c_12/alphabet_gau.gif);
}
.alphabet_droite{
	float:left;
	width:4px;
	height:26px;
	background-image:url(../images/b2c_12/alphabet_dro.gif);
	margin-left:-1px;
}
.lettre_def{
	float:left;
	padding:0px 0px 0px 11px;
}
.titre_lettre{
	float:left;
	height:20px;
	width:669px;
	background-color:#e2ebf5;
	border:1px solid #b0c0df;
	margin:-5px 0px 10px 0px;
	padding:2px 0px 0px 9px;
	font-weight:bold;
	font-size:14px;
	text-transform:uppercase;
	:"\"}\"";
	width:660px;
	height:18px;
}
.lettre_def .def{
	float:left;
	padding:0px 20px 9px 11px;
}
.lettre_def .def h3{
	font-size:12px;
	color:#333333;
	margin:0px 0px 2px 0px;
}
.lettre_def .puce{
	margin:0px 20px 10px 0px;
	background-image:url(../images/commun/puce_haut.gif);
}
<rde-dm:attribute mode="write" attribute="request:rdeResponseMimetype" op="set" value="text/css"/>