<!doctype html> <meta charset="utf-8"> <link rel="author" name="Delan Azabani" href="mailto:dazabani@igalia.com"> <p>Test passes if there is a green square containing a smaller black square below. <div style="width: 2em; height: 2em; background: green;"> <div style="width: 1em; height: 1em; background: black;"></div> </div>