diff --git a/static-parts/README-start.md b/static-parts/README-start.md
index db0f88233..fe9279692 100644
--- a/static-parts/README-start.md
+++ b/static-parts/README-start.md
@@ -33,6 +33,7 @@ CDN links
 - [ES5 Minified (UMD)](https://unpkg.com/30-seconds-of-code/dist/_30s.es5.min.js)
 
 <details>
+<summary>Details</summary>
 
 **Browser**