diff --git a/src/styles.css b/src/styles.css
index 45cc9d1..3dfda66 100644
--- a/src/styles.css
+++ b/src/styles.css
@@ -39,6 +39,15 @@
   margin: 1rem 1.5rem !important;
 }
 
+.leaflet-control-zoom-in,
+.leaflet-control-zoom-out {
+	text-indent: 0px !important;
+}
+
+.leaflet-control-zoom-in span,
+.leaflet-control-zoom-out span {
+	display: ruby-text;
+}
 
 /* .custom-center-tooltip {
   position: fixed !important;