diff --git a/apps/common/main/resources/less/toolbar.less b/apps/common/main/resources/less/toolbar.less
index 80e9df178..3519bb56d 100644
--- a/apps/common/main/resources/less/toolbar.less
+++ b/apps/common/main/resources/less/toolbar.less
@@ -633,9 +633,3 @@
         }
     }
 }
-
-.item-equation {
-    border: @scaled-one-px-value-ie solid @border-regular-control-ie;
-    border: @scaled-one-px-value solid @border-regular-control;
-    .background-ximage-v2('toolbar/math.png', 1500px);
-}