diff --git a/website/styles/index.less b/website/styles/index.less
index 67376d8..468dbdc 100644
--- a/website/styles/index.less
+++ b/website/styles/index.less
@@ -2,6 +2,7 @@
   position: fixed;
   bottom: 10px;
   left: 10px;
+  z-index: 9999;
   span + span {
     margin-left: 10px;
   }