IETC: WebKit does not support ridiculous text-shadow spread values Spread of 96px in the test. Seems pretty big. Not sure if we should support this. http://samples.msdn.microsoft.com/ietestcenter/css3/text/textshadow-005.htm
It's also possible I'm misunderstanding the bug.
WebKit only supports spread in box-shadow, not in text-shadow.
CSS WG is currently discussing spread on text-shadow. It's unclear how it behaves. Thread starts at http://lists.w3.org/Archives/Public/www-style/2012Jan/0991.html
Note that spread is in the spec now and has been for some time: https://drafts.csswg.org/css-text-decor-4/#ref-for-propdef-text-shadow%E2%91%A1
I raised an issue about `spread` on `text-shadow` here: https://github.com/w3c/csswg-drafts/issues/6971