<ul>

                <li><a class="current_nav" href="#">网站首页</a>

                	<ul>

                    	<span class="arrow"></span>

                    	<li class="twomenu"><a href="#">域名查询</a></li>

                    	<li class="twomenu"><a href="#">管理域名记录</a>

                        	<ul>

                            	<span class="arrow"></span>

                            	<li><a href="#">域名查询</a></li>

                                <li><a href="#">管理域名记录</a></li>

                                <li><a href="#">域名查询</a></li>

                                <li><a href="#">管理域名记录</a></li>

                                <li><a href="#">域名查询</a></li>

                            </ul>

                        </li>

                        <li class="twomenu"><a href="#">域名查询</a></li>

                    	<li class="twomenu"><a href="#">管理域名记录</a></li>

                        <li class="twomenu"><a href="#">域名查询</a></li>

                	</ul>

                </li>

                <li><a href="#">产品介绍</a></li>

 &n