This is a testharness.js-based test.
[FAIL] Property letter-spacing value '110%'
assert_true: '110%' is a supported value for letter-spacing. expected true got false
[FAIL] Property letter-spacing value '-5%'
assert_true: '-5%' is a supported value for letter-spacing. expected true got false
[FAIL] Property letter-spacing value 'calc(10% - 20%)'
assert_true: 'calc(10% - 20%)' is a supported value for letter-spacing. expected true got false
[FAIL] Property letter-spacing value 'calc(10px - (5% + 10%)'
assert_true: 'calc(10px - (5% + 10%)' is a supported value for letter-spacing. expected true got false
Harness: the test ran to completion.