<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>dir() selector</title> <style> :dir(ltr) { color: blue } :dir(rtl) { color: lime } :dir(foopy) { color: red } div { text-align: left; } </style> <script type="text/javascript"> function switchDir() { document.dir = "rtl"; } </script> </head> <body onload="switchDir()"> <div>This element has default direction.</div> <div dir="ltr">This element is ltr.</div> <div dir="rtl">This element is rtl.</div> <div dir="ltr"> <div>This element should inherit ltr.</div> <div dir="ltr">This element is ltr.</div> <div dir="rtl">This element is rtl.</div> </div> <div dir="rtl"> <div>This element should inherit rtl.</div> <div dir="ltr">This element is ltr.</div> <div dir="rtl">This element is rtl.</div> </div> <div dir="foopy">This element has an invalid dir attribute and should have default direction.</div> </body> </html>