diff --git a/docs/.vitepress/theme/custom.css b/docs/.vitepress/theme/custom.css
index 5dd313f0..8d9213a1 100644
--- a/docs/.vitepress/theme/custom.css
+++ b/docs/.vitepress/theme/custom.css
@@ -81,3 +81,7 @@ body {
 .item {
   z-index: 1;
 }
+
+.VPSidebar .curtain {
+  z-index: 2;
+}