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HTML 

              
                <div class="box">
    <div class="select-ui li-slt">
        <h3><a href="#select-list">Family Site</a></h3>
        <ul id="select-list">
            <li><a href="#none" title="새창 열림">Family Site</a></li>
            <li><a href="#none" title="새창 열림">네이버</a></li>
            <li><a href="#none" title="새창 열림">다음</a></li>
            <li><a href="#none" title="새창 열림">skB</a></li>
        </ul>
    </div>
</div>
!

CSS 

              
                * {margin: 0;padding: 0;}
.box {
  margin: 100px auto;
  width: 500px;
}

.select-ui {
  position: relative;
  width: 120px;
}

.select-ui h3 a {
  z-index: 10;
  position: relative;
  display: block;
  width: 120px;
  padding: 5px 0 5px 10px;
  font-size: 12px;
  font-weight: normal;
  line-height: 1;
  color: #686c73;
  text-decoration: none;
  background: #fff url('http://cfile7.uf.tistory.com/image/2225203756944C371A093B') no-repeat 95% 50%;
  border: 1px solid #c8c8c8;
}

.select-ui h3 a.on {
  background: url('http://cfile27.uf.tistory.com/image/26242F3756944C39246B9D') no-repeat 95% 50%;
}

.select-ui h3 a:hover {
  text-decoration: none;
  color: #df2428
}

.select-ui ul {
  display: none;
  position: absolute;
  width: 130px;
  max-height: 50px;
  overflow: hidden;
  overflow-y: scroll;
  left: 0;
  padding: 7px 0 7px;
  border: 1px solid #c8c8c8;
  background: #fff;
}

.select-ui ul li {
  display: inline;
  float: left;
  width: 100%;
}

.select-ui ul li a {
  display: block;
  padding: 3px 10px 2px;
  color: #686c73;
  font-size: 11px;
  line-height: 1.37;
  text-decoration: none;
}

.select-ui ul li a:hover {
  color: #df2428;
  text-decoration: none;
  background: #eff5ff;
}
!

JS 

              
                $.extend($.fn, {
        selectUi : function(opts){

            $.fn.selectUi.defaults = {
                showToTop: false, // list 위에서 보여질때 true, 디폴트는 아래도 나옴
                arrow : true, // 화살표 활성화 (css class on 으로 설정)
                duration: 400, // 슬라이드 속도 컨트롤
                listDuration : 200, // 리스트 항목 클릭 후 사라질 때 속도 컨트롤
                listItems :7, // 리스트 항목의 보여줄 갯수 설정
                listWid : false, // 리스트 width 값이 클때 true로 설정 후 아래의 listWidVal 값으로 width 설정 (두가지 옵션은 셋트임)
                listWidVal : 200
            };

            return this.each(function(){

                opts = $.extend( {}, $.fn.selectUi.defaults, opts || {});

                var _self = $(this),
                    target = _self.find('h3 > a');
                    list = _self.find('ul');


                function listHide(drt) {
                    list.slideUp(drt)
                }

                function rmClass() {
                    if(opts.arrow) {
                        target.removeClass('on')
                    }
                }

                target.on('click', function(){

                    if(list.is(':hidden')) {
                        list.slideDown(opts.duration);
                        var liHeight = list.find('li a').innerHeight();
                        list.css({'max-height': (liHeight * opts.listItems) - 5 });
                        if(opts.arrow) {
                            $(this).addClass('on')
                        }
                    } else {
                        listHide(opts.duration);
                        rmClass();
                    }
                    return false;
                });

                list.on('click','li a', function(){
                    listHide(opts.listDuration);
                    var clkText = $(this).text();
                    target.text(clkText);
                    rmClass();
                });

                if(opts.showToTop) {
                    list.css({bottom:23})
                } else {list.css({top:23})}

                if(opts.listWid) {
                    list.css({width: opts.listWidVal})
                }

                /* 셀렉터 컴포넌트를 벗어났을 때 */
                _self.on({
                    'mouseleave' : function() {
                        listHide(opts.duration);
                        rmClass();
                    }
                })

            })
        }
    });
    $('.li-slt').selectUi();
!
999px

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