<!DOCTYPE html> <link rel="author" title="Morten Stenshorne" href="mstensho@chromium.org"> <link rel="help" href="https://drafts.csswg.org/cssom-view-1/#dom-element-getclientrects"> <div style="position:absolute; top:0; left:0; width:200px; height:100px; writing-mode:vertical-rl; direction:ltr;"> <br id="child"> </div> <script src="/resources/testharness.js"></script> <script src="/resources/testharnessreport.js"></script> <script> test(()=>{ let r = document.getElementById("child").getClientRects()[0]; assert_greater_than(r.left, 150); assert_less_than(r.left, 200); assert_equals(r.top, 0); }, "Position of the BR element"); </script>