diff --git a/src/questions/css-questions.md b/src/questions/css-questions.md
index ec52735..36b77eb 100644
--- a/src/questions/css-questions.md
+++ b/src/questions/css-questions.md
@@ -35,3 +35,4 @@ permalink: /questions/css-questions/index.html
 * Can you explain the difference between coding a web site to be responsive versus using a mobile-first strategy?
 * Have you ever worked with retina graphics? If so, when and what techniques did you use?
 * Is there any reason you'd want to use `translate()` instead of *absolute positioning*, or vice-versa? And why?
+* How is clearfix css property useful?