diff --git a/challenges/html5-and-css.json b/challenges/html5-and-css.json
index da246fe22c..443c796409 100644
--- a/challenges/html5-and-css.json
+++ b/challenges/html5-and-css.json
@@ -3544,6 +3544,7 @@
       "tests": [
         "assert($(\"h1\").hasClass(\"pink-text\"), 'message: Your <code>h1</code> element should have the class <code>pink-text</code>.');",
         "assert($(\"h1\").hasClass(\"blue-text\"), 'message: Your <code>h1</code> element should have the class <code>blue-text</code>.');",
+        "assert($(\".pink-text\").hasClass(\"blue-text\"), 'message: Both <code>blue-text</code> and <code>pink-text</code> should belong to the same <code>h1</code> element.');",
         "assert($(\"h1\").css(\"color\") === \"rgb(0, 0, 255)\", 'message: Your <code>h1</code> element should be blue.');"
       ],
       "challengeSeed": [