This is a testharness.js-based test.
[FAIL] .target > * 1
  assert_equals: \n<span data-offset-y="80"></span>\noffsetTop expected 80 but got 29
[FAIL] .target > * 5
  assert_equals: \n<span data-offset-y="80"></span>\noffsetTop expected 80 but got 29
Harness: the test ran to completion.