<!DOCTYPE html> <html><head> <title>CSS Test reference</title> <link href="mailto:rhauck@adobe.com" rel="author" title="Rebecca Hauck"> <!-- Reviewed on Github on 09-26-2013: https://github.com/w3c/csswg-test/pull/89 --> <link href="mailto:mibalan@adobe.com" rel="reviewer" title="Mihai Balan"> <style type="text/css"> #box { position: absolute; top: 50px; left: 20px; width: 200px; height: 200px; border: 2px solid black; background-color: gray; } .black { position: absolute; background-color: black; width: 50px; height: 50px; } #r1c3 { left: 100px; } #r2c2 { left: 50px; top: 50px; } #r2c4 { left: 150px; top: 50px; } #r3c1 { top: 100px; } #r3c3 { left: 100px; top: 100px; } #r4c2 { left: 50px; top: 150px; } #r4c4 { left: 150px; top: 150px; } </style> </head> <body> <p>The test passes if there is a 4x4 black and gray checkerboard and no red.</p> <div id="box"> <div class="black"></div> <div id="r1c3" class="black"></div> <div id="r2c2" class="black"></div> <div id="r2c4" class="black"></div> <div id="r3c1" class="black"></div> <div id="r3c3" class="black"></div> <div id="r4c2" class="black"></div> <div id="r4c4" class="black"></div> </div> </body></html>