diff --git a/app/src/frontend/map/layers/city-base-map-layer.tsx b/app/src/frontend/map/layers/city-base-map-layer.tsx
index c5693e6f..b8e070f7 100644
--- a/app/src/frontend/map/layers/city-base-map-layer.tsx
+++ b/app/src/frontend/map/layers/city-base-map-layer.tsx
@@ -24,7 +24,7 @@ export function CityMap() {
 
   return (
     <div className="map-container">
-    <div id="map" style={{ width: '100vh', height: '100vh' }}></div>
+    <div id="map" style={{ width: '100%', height: '100vh' }}></div>
     </div>
   );
 }