Put this in includes/templates/YOUR_TEMPLATE/css/stylesheet.css:

/* ---- Article Sidebox ---- */
#staticRSSText {
  font-weight: bold;
}
.staticRSSArticles {
  text-align: left;
  margin: 5px 0 0 0;
  list-style: none;
}
.staticRSSArticle {
  margin: 0;
  /* remove/comment out the following line if using a defined delimiter */
  background: url("../images/icons/bullet-point.gif") 0px 8px no-repeat;
  padding: 0px 0px 2px 8px; 
}