The three spans below should look the same.
On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
Span
Span
Span
PASS document.getElementById('test_span_1').offsetWidth is document.getElementById('ref_span').offsetWidth
PASS document.getElementById('test_span_2').offsetWidth is document.getElementById('ref_span').offsetWidth
PASS successfullyParsed is true
TEST COMPLETE