diff --git a/exercises/06-center-content/README.es.md b/exercises/06-center-content/README.es.md
index 86ebfc8..cebea1c 100644
--- a/exercises/06-center-content/README.es.md
+++ b/exercises/06-center-content/README.es.md
@@ -7,7 +7,7 @@ Por favor, coloca este contenido dentro de una caja con `400px` de ancho(`width`
 ## 📝 Instrucciones:
 
 1. Crea un `div` tag con una clase `"myDiv"`
-2. Usando CSS, dale un ancho de `400px` al `div`
+2. Usando CSS, dale un ancho de `400px` y un background `grey` al `div`.
 3. Centra el `div` horizontalmente en el `body` tag
 
 ## 💻 Resultado esperado:
diff --git a/exercises/06-center-content/README.md b/exercises/06-center-content/README.md
index 01195ea..f8e405c 100644
--- a/exercises/06-center-content/README.md
+++ b/exercises/06-center-content/README.md
@@ -7,7 +7,7 @@ Please wrap this content into a box with `400px` of `width`, then center the box
 ## 📝 Instructions:
 
 1. Create a `div` tag with the class name `"myDiv"`
-2. Using CSS, give your `div` a width of `400px`
+2. Using CSS, give your `div` a width of `400px` and a background `grey`.
 3. Finally, center the `div` horizontally on the `body` tag
 
 ## 💻 Expected result: