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<html><head><style>div.a { position: relative; width: 400px; height: 200px; border: 3px solid red;}div.b { position: absolute; top: 0; border: 3px solid blue;} div.c { position: absolute; top: 50px; border: 3px solid green;} </style></head><body><h1>The top Property</h1><p>The following red div element has position: relative;</p><div class="a"> <div class="b">This div element has position: absolute, and top: 0.</div> <div class="c">This div element has position: absolute, and is placed 50 pixels down from the top edge of the containing positioned element.</div></div></body></html>