diff --git a/src/layouts/BasicLayout.less b/src/layouts/BasicLayout.less
index f2bc9afb673f9fd36b98062efa1d0c5b598ef2e2..dc40a1e56b0039212736afecdea7e496c9b4b6c7 100644
--- a/src/layouts/BasicLayout.less
+++ b/src/layouts/BasicLayout.less
@@ -31,7 +31,7 @@
   }
 }
 
-.trigger {
+i.trigger {
   font-size: 20px;
   line-height: 64px;
   cursor: pointer;