diff --git a/index.html b/index.html
index cb47e49..5201069 100644
--- a/index.html
+++ b/index.html
@@ -38,6 +38,7 @@
       right: 0;
       height: 6px;
       background: var(--strip-color);
+      z-index: 10;
     }
 
     .reveal .slides section {