diff --git a/layouts/shortcodes/toc.html b/layouts/shortcodes/toc.html
index 4d29f6a..a42d5ef 100644
--- a/layouts/shortcodes/toc.html
+++ b/layouts/shortcodes/toc.html
@@ -1,6 +1,6 @@
-<aside role="doc-toc">
-<details>
-<summary id="toc">Table of Contents</summary>
+<aside>
+<section role="doc-toc">
+<h2 id="toc">Table of Contents</h2>
 {{.Page.TableOfContents}}
-</details>
+</section>
 </aside>