fix question example code for id: 587d78a7367417b2b2512ae0

curriculum/challenges/chinese-traditional/01-responsive-web-design/applied-visual-design/use-css-animation-to-change-the-hover-state-of-a-button.md

@@ -15,6 +15,9 @@ dashedName: use-css-animation-to-change-the-hover-state-of-a-button
 
 ```html
 <style>
+  img {
+    width: 30px;  
+  }
   img:hover {
     animation-name: width;
     animation-duration: 500ms;

curriculum/challenges/chinese/01-responsive-web-design/applied-visual-design/use-css-animation-to-change-the-hover-state-of-a-button.md

@@ -15,6 +15,9 @@ dashedName: use-css-animation-to-change-the-hover-state-of-a-button
 
 ```html
 <style>
+  img {
+    width: 30px;
+  }
   img:hover {
     animation-name: width;
     animation-duration: 500ms;

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;

curriculum/challenges/espanol/01-responsive-web-design/applied-visual-design/use-css-animation-to-change-the-hover-state-of-a-button.md

@@ -15,6 +15,9 @@ Aquí hay un ejemplo de como cambiar el ancho de una imagen al pasar sobre ella:
 
 ```html
 <style>
+  img {
+    width: 30px;
+  }
   img:hover {
     animation-name: width;
     animation-duration: 500ms;

curriculum/challenges/italian/01-responsive-web-design/applied-visual-design/use-css-animation-to-change-the-hover-state-of-a-button.md

@@ -15,6 +15,9 @@ Ecco un esempio di cambiamento della larghezza di un'immagine quando ci si passa
 
 ```html
 <style>
+  img {
+    width: 30px;
+  }
   img:hover {
     animation-name: width;
     animation-duration: 500ms;

curriculum/challenges/portuguese/01-responsive-web-design/applied-visual-design/use-css-animation-to-change-the-hover-state-of-a-button.md

@@ -15,6 +15,9 @@ Aqui está um exemplo de alteração da largura de uma imagem ao passar o cursor
 
 ```html
 <style>
+  img {
+    width: 30px;
+  }
   img:hover {
     animation-name: width;
     animation-duration: 500ms;