diff --git a/docs/src/css/custom.css b/docs/src/css/custom.css
index f92be7ffeadcc..548a9039dbe35 100644
--- a/docs/src/css/custom.css
+++ b/docs/src/css/custom.css
@@ -38,6 +38,10 @@
   --ifm-navbar-height: none;
 }
 
+.theme-doc-toc-desktop {
+  position: fixed !important;
+}
+
 .docusaurus-highlight-code-line {
   background-color: rgba(0, 0, 0, 0.1);
   display: block;