I'm trying to figure out how to style the button-like background around the tag words in the tag cloud on the upper blogs page. They are in the Tags block, which is in the left sidebar. I've tried fussing with so many css settings in main.css and typography.css, and I can change the background of the whole tags block, or the fonts of the tags. I can even highlight the tag words, but I can't seem to change the button-like rounded box surrounding each tag word. In main.css there is this:

div#main-container .ccm-tags-display ul.ccm-tag-list li {
display: inline;
color: #fff;
padding: 5px 8px 6px 8px;
margin: 3px 6px 3px 0;
-webkit-border-radius: 4px;
-moz-border-radius: 4px;
float: left;
line-height: 13px;
height: 13px;
}

which seems to control these items, but when I add in a line for background-color it doesn't stick. What am I missing?

thanks!