Lists/Plugins won't align horizontally

Hello,

I am trying to add social media share buttons to my site brettfortnam.com, below my post header and before my post content on the single posts pages. I have tried various plugins including diggdigg and reallysimplesharebuttons, but the buttons always appear in a vertical list. I tried to circumvent the problem by creating my own list, but it would still not align horizontally and on the same line. While troubleshooting I added a basic list with the following code:

`<ul>
<li>1</li>
<li>2</li>
<li>3</li>
</ul>`

with the corresponding css:

ul {
list-style-type: none;
}

ul li {
display:inline;
}

I have also tried using display:inline-block; and adding float:left; and postion: relative; in any spot, but to no avail. Any help would be greatly appreciated. Thank you.