diff --git a/html/index.css b/html/index.css
index c33471356..ecb028694 100644
--- a/html/index.css
+++ b/html/index.css
@@ -200,6 +200,7 @@ BODY {
         left:1px;
         background-color: white;
         bottom: initial;
+        width: 20rem;
     }
 }
 @media only screen and (min-width : 1100px) {