<!DOCTYPE html> <html class="reftest-wait"> <head> <meta charset="UTF-8"> <title>CSS Test: :dir() selector</title> <link rel="author" title="Astley Chen" href="mailto:aschen@mozilla.com"> <link rel="author" title="Mozilla" href="https://www.mozilla.org"> <link rel="help" href="https://drafts.csswg.org/selectors-4/#the-dir-pseudo"> <meta name="assert" content="Test checks if :dir() can work with other selectors correctly after a dynamic directionality change on specified divs."> <link rel="match" href="dir-style-03-ref.html"> <style> div { color: lime; text-align: left; } :not(:dir(ltr)) + div { color: blue } </style> <script> function switchDir() { theDiv = document.getElementById("div"); theDiv.offsetWidth; // ensure it's a dynamic change if (theDiv.dir == "ltr") { theDiv.dir = "rtl"; } else if (theDiv.dir == "rtl") { theDiv.dir = "ltr"; } document.documentElement.removeAttribute("class"); } </script> </head> <body onload="switchDir()"> <div id="div" dir="ltr">This element is rtl.</div> <div>This element has default direction.</div> </body> </html>