Aligning Recent Posts PHP

I’m having trouble getting my recent post php to align correctly on my site. It looks fine in Firefox, but in IE it it indented. I know it has something to do with the right article LI code in the stylesheet, but I don’t know how to correct it.

Here is the current code in the stylesheet:

.rightarticle li {
background: url('images/li.gif') no-repeat 0 7px;
padding-left: 1.5em;
font-size: 12px;
list-style-type: none;
}

My site is https://tennisgear.onthebaseline.com and the section I’m referring to is the latest reviews.

Thanks so much for the help!