diff --git a/ext/client.css b/ext/client.css
index 913624d7..93866f03 100644
--- a/ext/client.css
+++ b/ext/client.css
@@ -24,4 +24,5 @@
     pointer-events:   none;
     position:         fixed;
     width:            auto;
+    z-index:          64;
 }