diff --git a/src/css/breadcrumbs.css b/src/css/breadcrumbs.css
index ea2d247..c8068cd 100644
--- a/src/css/breadcrumbs.css
+++ b/src/css/breadcrumbs.css
@@ -27,6 +27,7 @@
     margin-right: 3rem;
     background-color: var(--body-background-color);
     border-bottom: 1px solid var(--nav-panel-divider-color);
+    z-index: 99;
   }
   .doc {
     padding-top: 60px;