위 그림과 같습니다. 좌측이 IE8이구요, 우측이 IE6입니다.

  
   <div style="overflow:hidden;" >
           
        <ul id="gnb" style="  visibility:hidden">
            <!-- main_menu 1차 시작 -->
            <!--@foreach($main_menu->list as $key => $val)--><!--@if($val['link'])-->
                <!--@if($val['selected'])-->
                    {@ $menu_1st = $val }
                <!--@end-->

                <li <!--@if($val['selected'])-->class="on"<!--@end-->><a href="{$val['href']}" <!--@if($val['open_window']=='Y')-->onclick="window.open(this.href);return false;"<class="on">!--@if($val['selected'])-->class="on"<!--@end-->><a href="{$val['href']}" <!--@if($val['open_window']=='Y')-->onclick="window.open(this.href);return false;"<!--@if($val['list'] && ($val['expand']=='Y'||$val['selected']) )-->
                    <ul>
                    <!--@foreach($val['list'] as $k => $v)--><!--@if($v['link'])-->
                        <li <!--@if($v['selected'])-->class="on"<!--@end-->><a href="{$v['href']}" <!--@if($v['open_window']=='Y')-->onclick="window.open(this.href);return false;"<