.bandeauAccueil
{
position:relative;width:1000px;height:555px;text-align:left;padding:0px;margin-left: auto; margin-right: auto;background-repeat: no-repeat;background-position:left top;
background-image: url(../images/fond.jpg);
}

.cadreAccueil
{
padding:5px;position:relative;left:300px;top:235px;width:690px;
}