XF 1.4 Centering header image

Hey guys, I have another question for someone more skilled with this than I am. I've been trying to center my header image, and I haven't been able to do it thus far.

This is the header image: http://i.gyazo.com/129ebd2d3419647d71eb26f60a29fc93.png

This is the code I tried, I put it into extras.css

#logo {
float: none;
text-align: center !important;
Any idea's on why it isn't working?

Link to site http://anarchyscape.com/index.php
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