"Simetrical" == Simetrical Simetrical+wikilist@gmail.com writes:
You want to give it some width as well. In that case you need to change the method of centering, I suppose:
.firstHeading { margin-left: auto; margin-right: auto; width: 60%; }
You probably want to fiddle with the width until you like how it looks. Note that that might not work on some older browsers (I can't recall how well margin: auto centering is supported), and that due to improper line-height declarations, wrapped lines in headers don't look good in Monobook by default.
Thanks but it does not work for me on 1.9.3 using monobook. I did that changes in common.css.