<!DOCTYPE html> <meta charset="utf-8"> <title>CSS Test: An Empty Text Node Should Not Generate a Baseline</title> <link rel="author" title="David Shin" href="mailto:dshin@mozilla.com"> <link rel="help" href="https://drafts.csswg.org/css-display-3/#intro"> <link rel="help" href="https://github.com/w3c/csswg-drafts/issues/9606"> <link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1855583"> <link rel="stylesheet" href="/fonts/ahem.css"> <script src="/resources/testharness.js"></script> <script src="/resources/testharnessreport.js"></script> <style> body { margin: 0; } #container { font-family: Ahem; } #inner { display: inline-block; } </style> <div id="container"><div id="inner">x</div><span id="span">x</span></div> <script> const expected = span.offsetTop; // Force an empty text node on the second line of #inner inner.appendChild(document.createElement("br")); inner.appendChild(document.createTextNode('')); test(function() { assert_equals(span.offsetTop, expected); }, "Empty second line in #inner does not generate baseline for #span"); test(function() { inner.style = "white-space: pre-line"; assert_equals(span.offsetTop, expected); }, "Empty second line in #inner does not generate baseline for #span with white-space: pre-line"); test(function() { inner.style = "white-space: pre"; assert_equals(span.offsetTop, expected); }, "Empty second line in #inner does not generate baseline for #span with white-space: pre"); </script>