diff --git a/docs/public/css/base.scss b/docs/public/css/base.scss
index c89257ac..9661c667 100644
--- a/docs/public/css/base.scss
+++ b/docs/public/css/base.scss
@@ -162,6 +162,7 @@ footer {
 
 .tt-menu {
     width: 100%;
+    background-color: #fff;
     padding: 8px 0;
     border: 1px solid #ccc;
     border: 1px solid rgba(0, 0, 0, 0.2);