diff --git a/7-animation/2-css-animations/article.md b/7-animation/2-css-animations/article.md
index 09327b2c..f9721e4f 100644
--- a/7-animation/2-css-animations/article.md
+++ b/7-animation/2-css-animations/article.md
@@ -467,7 +467,7 @@ For example, here clicking on the `#boat` element adds the class with `transform
 Here's a more complex example, with `@keyframes`:
 
 ```html run height=80 autorun no-beautify
-<h1 onclick="this.classList.toggle('animated')">click me to start / stop</h1>
+<h2 onclick="this.classList.toggle('animated')">click me to start / stop</h2>
 <style>
   h1.animated {
     animation: hello-goodbye 1.8s infinite;