diff --git a/userChrome.css b/userChrome.css
index 707d9a4..f5b63a8 100644
--- a/userChrome.css
+++ b/userChrome.css
@@ -28,6 +28,13 @@
     padding-block: 1px;
   }
 
+  /*= Zoom in button's plus icon horizontal rate =============================*/
+  #customization-palette-container  #zoom-in-button > .toolbarbutton-icon,
+  #customization-panel-container  #zoom-in-button > .toolbarbutton-icon,
+  #widget-overflow-mainView #zoom-in-button > .toolbarbutton-icon {
+    padding-inline-start: 0px !important;
+  }
+
   /*= Icon Fill Color ========================================================*/
   :root:-moz-lwtheme {
     /* Auto create --lwt-toolbarbutton-icon-fill-attention, fix for nightly default theme