This is a testharness.js-based test.
[FAIL] .target > * 9
  assert_equals: \n<span data-offset-x="25"></span>\noffsetLeft expected 25 but got 10
[FAIL] .target > * 11
  assert_equals: \n<span data-offset-x="25"></span>\noffsetLeft expected 25 but got 10
Harness: the test ran to completion.