Colorbox + Fontawesome

colorbox.css

/*
    Colorbox Core Style:
    The following CSS is consistent between example themes and should not be altered.
*/
#colorbox, #cboxOverlay, #cboxWrapper{position:absolute; top:0; left:0; z-index:9999; overflow:hidden;}
#cboxWrapper {max-width:none;}
#cboxOverlay{position:fixed; width:100%; height:100%;}
#cboxMiddleLeft, #cboxBottomLeft{clear:left;}
#cboxContent{position:relative;}
#cboxLoadedContent{overflow:auto; -webkit-overflow-scrolling: touch;}
#cboxTitle{margin:0;}
#cboxLoadingOverlay, #cboxLoadingGraphic{position:absolute; top:0; left:0; width:100%; height:100%;}
#cboxPrevious, #cboxNext, #cboxClose, #cboxSlideshow{cursor:pointer;}
.cboxPhoto{float:left; margin:auto; border:0; display:block; max-width:none; -ms-interpolation-mode:bicubic;}
.cboxIframe{width:100%; height:100%; display:block; border:0; padding:0; margin:0;}
#colorbox, #cboxContent, #cboxLoadedContent{box-sizing:content-box; -moz-box-sizing:content-box; -webkit-box-sizing:content-box;}

/* 
    User Style:
    Change the following styles to modify the appearance of Colorbox.  They are
    ordered & tabbed in a way that represents the nesting of the generated HTML.
*/
#cboxOverlay{background:#000;}
#colorbox{outline:0;}
    #cboxContent{margin-top:40px;}
        .cboxIframe{background:#fff;}
        #cboxError{padding:50px; border:1px solid #ccc;}
        #cboxLoadedContent{ }
        #cboxTitle{position:absolute; top:-20px; left:0; color:#ccc;}
        #cboxCurrent{position:absolute; top:-20px; right:0px; color:#ccc;}
        // #cboxLoadingGraphic{background:url(images/loading.gif) no-repeat center center;}

        /* these elements are buttons, and may need to have additional styles reset to avoid unwanted base styles */
        #cboxPrevious, #cboxNext, #cboxSlideshow, #cboxClose {border:0; padding:0; margin:0; overflow:visible; width:auto; background:none; }

        /* avoid outlines on :active (mouseclick), but preserve outlines on :focus (tabbed navigating) */
        #cboxPrevious:active, #cboxNext:active, #cboxSlideshow:active, #cboxClose:active {outline:0;}
        #cboxSlideshow{position:absolute; top:-20px; right:90px; color:#fff;}

        #cboxPrevious, #cboxNext{
          position:absolute;
          top:50%;
          margin-top:-32px;
          width:28px;
          height:100px;
          color: #aaa;
          outline: none;
        }
        #cboxPrevious{
          left: 5px;
        }
        #cboxPrevious:before{
          font-size: 72px;
          font-family: FontAwesome;
          content: "\f104";
        }
        #cboxPrevious:hover{color: #fff;}
        #cboxNext{
          right:5px;
        }
        #cboxNext:before{
          font-size: 72px;
          font-family: FontAwesome;
          content: "\f105";
        }
        #cboxNext:hover{color: #fff;}
        #cboxClose{
          position:absolute;
          top: -45px;
          right: -10px;
          display:block;
          width:45px;
          height:45px;
          color: #aaa;
          outline: 0;
        }
        #cboxClose:before{
          font-family: FontAwesome;
          font-size: 28px;
          content: "\f057";
        }
        #cboxClose:hover{
          color: #fff;
        }