Tests the computed style for subpixel shadows
On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
PASS style.getPropertyValue('text-shadow') is 'rgb(255, 0, 0) 0.5px 1.5px 2.5px'
PASS style.getPropertyValue('box-shadow') is 'rgb(255, 0, 0) 0.5px 1.5px 2.5px 3.5px'
PASS successfullyParsed is true
TEST COMPLETE
Text shadow
Box shadow