#contenu{
margin: 0;
text-align: justify;
width: 780px;
float:none;
/* largeur totale 548px*/
}

.post-contenu{
margin:20px 0 0 0;
}

#menu{
margin: 0;
float: right;
padding:0 0 20px 20px;
width: 760px;
}

.menu-bloc{
float:left;
height:200px;
margin:20px 20px 0 0;
overflow:auto;
padding:5px;
width:223px;
}

.post h2 {
text-align:center;
}