diff --git a/umap/static/umap/map.css b/umap/static/umap/map.css
index 4c14bfc6..ccd5ed48 100644
--- a/umap/static/umap/map.css
+++ b/umap/static/umap/map.css
@@ -172,6 +172,8 @@
     display: none;
     left: 0;
     overflow: hidden;
+    min-height: 1.5rem;
+    height: 1.5rem;
 }
 .leaflet-iconLayers-layerTitle {
     text-align: center;
@@ -184,6 +186,9 @@
 .leaflet-iconLayers:hover .leaflet-iconLayers-layerTitleContainer {
     display: initial;
 }
+.leaflet-iconLayers-layerCell:hover .leaflet-iconLayers-layerTitleContainer {
+    height: initial;
+}