#contenu { float:left; width:445px; min-height:200px; background:none;}
#contenu #preview { padding:0 10px 0 20px; font-size:0.9em; line-height:1.4em; }
#coldroite { width:510px;}
#visuel { height:300px; background-repeat:no-repeat; background-position:left top;}

.bloc { float:left; width:245px; margin-top:5px;}

#actualites { width:285px; margin-bottom:0em; height:250px;}
#references { float:right; width:205px;}