Using fonts with :before css as icon bullets

Using font awesome fonts with :before css as icon bullets

ul.downlistkn li a:before {

  content: "\f21b"; /* FontAwesome Unicode */
  font-family: FontAwesome;
  display: inline-block;
  width: 1.5em; 
  font-size: 20px;
  margin-left: 5px;

}