<!doctype html> <meta charset="utf-8"> <link rel="author" title="Markus Stange" href="mailto:mstange@themasta.com"> <link rel="help" href="https://drafts.csswg.org/css-display/#box-generation"> <title>Bug 1338678 - display:contents makes textContent disappear</title> <div style="display: contents"> <div id="element"></div> </div> <script> window.onload = function() { document.body.offsetTop; var element = document.getElementById('element'); element.textContent = "FAIL"; element.textContent = "PASS"; } </script>