.div2
{
    display: inline-block;
    *display: inline;
    *zoom: 1;
    vertical-align: top;
     width: 350px; 
}

.div3 
{
    display: inline-block;
    *display: inline;
    *zoom: 1;
    vertical-align: top;
    width: 350px;
}


.chapeau{
    font-size:1.3em;
    display: block;
    margin-bottom: 10px;
}

.illustration{
    display: :inline-block;
}

.arguments{
    display: inline-block;
    *display: inline;
    *zoom:1;
    width:450px;
    vertical-align: top;
    padding: 0;
    list-style-image: url('/media/Sav/SAV-puce.jpg');
    list-style-position:inside;
    margin: 0 0 0 10px;
}
.arguments li{
    margin-bottom: 8px;
}
.span1 {
    float: right;
}