Forum Logo image position command

[محروم.كوم]

I was poking around in the vbulletin-chrome.css page and came on to this:
Code:
.logo-image { float:{stylevar left}; }

As it says logo image I got courious to what it does. I changed left to right and found it shoves my logo over to the right.
AH HA!! An easy way to position the logo in the header. But alas no joy when I changed stylevar left or right to an align or position style of command.
Is some one hip to what the correct command would be using that .logo-image to center up the image? __DEFINE_LIKE_SHARE__