#container_pre,
    #header_menu_pre,
    #header_menu_suf,
    #header_pre,
    #sidebar_left
    {
        display: none;
    }
    .form_ssl{
    margin:0 auto;
        width: 20%;
    }
    
    .form_f{margin-left:25%;}
@media (min-width:320px) and (max-width: 560px) {
.form_f{margin-left:0;}
}