<!DOCTYPE html> <title>Reference of testcases for bug 1279403</title> <style> span { height: 100px; width: 100px; background: green; position: fixed; top: 50px; } div { height: 100px; width: 100px; background: blue; } #first { } #second { position: fixed; } </style> <span></span> <div id="first"></div> <div id="second"></div>