Both of these tags have no wiki info, so their purpose is unclear. Times used:
I think of "text-align" as a CSS property, but I also think it would be excessive to have a tag for each one.
closed as off-topic by Martijn Pieters, nicael, gnat, Shadow Wizard, bluet Oct 8 '14 at 23:33
This question appears to be off-topic. The users who voted to close gave this specific reason: