Laying out 125px button ads?

[ChrisF79]

Greetings:

I'm working on a wordpress template at the moment and I'm stuck in the sidebar trying to figure out how to layout the 125px x 125px banner ads like you see on http://www.psdtuts.com/ or http://vandelaydesign.com/blog/

I know that they're using a script from BuySellAds.com to do it but I'd like to do it manually to sell my own. Right now I have my 4 ads in a <ul> and each one is an <li> tag. However, how should I work the spacing? If I put margin-left and margin-right on the ads, they won't be equally spaced. How in the word do people do this? I'm puzzled and would appreciate any expert advice!

Thanks in advance!

[TheMichael]

Only use a margin right or a margin left, not both. Maybe using a padding to get the edge at which your banners start to get the first one in the correct starting position. Make sense?