#widget_pointvente{
    position:fixed;
    z-index:500;
    top:350px;
    width:250px;
    height:100px;
    background:black;
    right:-251px;
    transition:250ms;
}

#widget_pointvente.open{
    right:0;
    z-index:900;
}

#widget_pointvente .btn_call{
    position:absolute;
    top:0;
    left:-141px;
    cursor:pointer;
}

@media screen and (max-height:768px){
    #widget_pointvente{
        top:32vh;
    }
}