ckbox" oninput="showPreview()"></span>
                    </div>
                    <p>Carte affichée par défaut <select id="sources" oninput="showPreview()">
                        <option value="outdoors">Mapbox Outdoors</option>
                        <option value="satellite">Mapbox Satellite</option>
                        <option value="osm" selected="selected">OpenStreetMap</option>
                        <option value="otm">OpenTopoMap</option>
                        <option value="ohm">Ope