<!DOCTYPE html> <meta charset="utf-8"> <title>CSS Test: display: contents unboxing works in presence of dynamic changes to the tree.</title> <link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io"> <link rel="help" href="https://drafts.csswg.org/css-display-3/#valdef-display-contents"> <link rel="help" href="https://drafts.csswg.org/css-display-3/#unbox"> <link rel="match" href="display-contents-suppression-dynamic-001-ref.html"> <p>Test passes if you see nothing below.</p> <textarea style="display: contents"> FAIL </textarea> <script> let textarea = document.querySelector("textarea"); textarea.offsetTop; textarea.appendChild(document.createTextNode("FAIL")); </script>