diff --git a/curriculum/challenges/english/01-responsive-web-design/applied-visual-design/change-the-position-of-overlapping-elements-with-the-z-index-property.english.md b/curriculum/challenges/english/01-responsive-web-design/applied-visual-design/change-the-position-of-overlapping-elements-with-the-z-index-property.english.md
index 6577435ad2c..d8a9cb425dd 100644
--- a/curriculum/challenges/english/01-responsive-web-design/applied-visual-design/change-the-position-of-overlapping-elements-with-the-z-index-property.english.md
+++ b/curriculum/challenges/english/01-responsive-web-design/applied-visual-design/change-the-position-of-overlapping-elements-with-the-z-index-property.english.md
@@ -7,7 +7,7 @@ videoUrl: 'https://scrimba.com/c/cM94aHk'
 
 ## Description
 <section id='description'>
-When elements are positioned to overlap, the element coming later in the HTML markup will, by default, appear on the top of the other elements. However, the <code>z-index</code> property can specify the order of how elements are stacked on top of one another. It must be an integer (i.e. a whole number and not a decimal), and higher values for the <code>z-index</code> property of an element move it higher in the stack than those with lower values.
+When elements are positioned to overlap (i.e. using <code>position: absolute | relative | fixed | sticky</code>), the element coming later in the HTML markup will, by default, appear on the top of the other elements. However, the <code>z-index</code> property can specify the order of how elements are stacked on top of one another. It must be an integer (i.e. a whole number and not a decimal), and higher values for the <code>z-index</code> property of an element move it higher in the stack than those with lower values.
 </section>
 
 ## Instructions