diff --git a/src/common/styles/ant.less b/src/common/styles/ant.less
index e2b8e4f1c..e79abe26a 100644
--- a/src/common/styles/ant.less
+++ b/src/common/styles/ant.less
@@ -90,7 +90,7 @@
   max-width: 100%;
 }
 
-&.ant-tooltip-arrow {
+.ant-tooltip-arrow {
   margin-top: 6px;
 }