<!DOCTYPE html> <html><head> <title>CSS Reference File</title> <link href="mailto:rhauck@adobe.com" rel="author" title="Rebecca Hauck"> <style> body { margin: 0; } #container { position: relative; } #line { position: absolute; top: 0px; left: 100px; width: 2px; height: 200px; border-left: 2px solid blue; } #square { position: absolute; top: 80px; left: 60px; width: 40px; height: 40px; background-color: green; } </style></head> <body> <p>The test passes if there is a green square to the left of the blue line. There should be no red.</p> <div id="container"> <div id="line"></div> <div id="square"></div> </div> </body></html>