/* Gestion du style des blocs pour niveau2 et iframe*/
.bordure{
    height: 3px !important;
    width: 80% !important;
    margin-top: 10px !important;
    background: radial-gradient(ellipse closest-side, black 10%, rgb(67, 67, 67) 20%, white) !important;
    margin-left: auto;
    margin-right: auto;
    }

/* Gestion navbar */
.navbar-default {background-color: transparent!important;}

.collapse{display: block!important;}

.navbar-nav{display: inline-flex !important;float: left !important;}
.navbar-nav > li{margin-inline: 1px!important;}

@media screen and (max-width:670px){.navbar-nav{display: inline-block !important;}.navbar-nav > li {margin-inline: 0px!important;}}