diff --git a/src/components/TableOfContents.astro b/src/components/TableOfContents.astro
index 6e91d7c..4345944 100644
--- a/src/components/TableOfContents.astro
+++ b/src/components/TableOfContents.astro
@@ -73,6 +73,9 @@ const toc = buildHierarchy(filteredHeadings);
 <style>
     details {
         margin: 0.5rem auto;
+        cursor: pointer;
+        padding: 0.5rem;
+        border: var(--accent-color) 0.1rem solid;
     }
     .toc-list {
         list-style-type: none;