diff --git a/apps/common/main/resources/less/opendialog.less b/apps/common/main/resources/less/opendialog.less
index 420ed6401..13b2ac71e 100644
--- a/apps/common/main/resources/less/opendialog.less
+++ b/apps/common/main/resources/less/opendialog.less
@@ -77,14 +77,12 @@
         }
       }
 
-      .icon {
+      .icon.warn {
         float: left;
         width: 40px;
         height: 40px;
+        background: ~"url('@{common-image-const-path}/controls/warnings.svg#attention')" no-repeat center;
 
-        &.warn {
-          background: ~"url('@{common-image-const-path}/controls/warnings.svg#attention')" no-repeat center;
-        }
       }
     }
   }