diff --git a/index.html b/index.html
index 7683f46..98ba6ab 100644
--- a/index.html
+++ b/index.html
@@ -52,6 +52,8 @@ <h1 style="color:red;font-size:16px;">
         maxZoom="23"
         drawMode
         drawMany
+        basemap="MapboxSatellite"
+        showCentreMarker
         osCopyright="© Crown copyright and database rights 2024 OS (0)100024857"
         osProxyEndpoint="https://api.editor.planx.dev/proxy/ordnance-survey"
       />
diff --git a/src/components/my-map/index.ts b/src/components/my-map/index.ts
index 7fed3a8..6999567 100644
--- a/src/components/my-map/index.ts
+++ b/src/components/my-map/index.ts
@@ -493,6 +493,7 @@ export class MyMap extends LitElement {
     });
 
     map.addLayer(geojsonLayer);
+    geojsonLayer.setZIndex(1001);
 
     if (geojsonSource.getFeatures().length > 0) {
       // fit map to extent of geojson features, overriding default zoom & center
@@ -703,6 +704,7 @@ export class MyMap extends LitElement {
       });
 
       map.addLayer(markerLayer);
+      markerLayer.setZIndex(1001);
     };
 
     // show a marker at a point