This is a testharness.js-based test.
[FAIL] With em and percentage
assert_equals: r1.width expected 40 but got 0
Harness: the test ran to completion.
This is a testharness.js-based test.
[FAIL] With em and percentage
assert_equals: r1.width expected 40 but got 0
Harness: the test ran to completion.