body
{
    margin:0px;
    padding: 0px;
    background: rgb(220,220,220);
    width:1024px;
    font-family: arial, serif;
}

#conteneur
{
    margin:0px;
    padding:0px;
    width:684px;
    margin-left:auto;
    margin-right:auto;
    min-height:700px;
    background:whitesmoke;
}

#conteneur2
{
    margin:0px;
    padding:0px;
    width:900px;
    margin-left:auto;
    margin-right:auto;
    min-height:700px;
    background:whitesmoke;
}