https://bugzilla.mozilla.org/show_bug.cgi?id=512988
512988 - Text-shadow blur and underline messes up with padding-left
RESOLVED (ventnor.bugzilla) in Core - Layout: Text and Fonts. Last updated 2009-09-23.
text shadowblur
https://cert-portal.siemens.com/productcert/html/ssa-512988.html
SSA-512988
ssa