diff --git a/curriculum/challenges/english/01-responsive-web-design/applied-visual-design/use-css-animation-to-change-the-hover-state-of-a-button.md b/curriculum/challenges/english/01-responsive-web-design/applied-visual-design/use-css-animation-to-change-the-hover-state-of-a-button.md
index 73d10af003..f26d2585dd 100644
--- a/curriculum/challenges/english/01-responsive-web-design/applied-visual-design/use-css-animation-to-change-the-hover-state-of-a-button.md
+++ b/curriculum/challenges/english/01-responsive-web-design/applied-visual-design/use-css-animation-to-change-the-hover-state-of-a-button.md
@@ -15,6 +15,9 @@ Here's an example of changing the width of an image on hover:
 
 ```html
 <style>
+  img {
+    width: 30px;
+  }
   img:hover {
     animation-name: width;
     animation-duration: 500ms;