隐藏html的标签

<div class="span11 alignment">
    <h1>我的虚拟网络</h1>
</div>
</br>
<ul class="nav nav-tabs vmcs-tab">
    <li<%= raw ‘ class="active"‘ if controller.action_name == ‘index‘ %>>
	  <%= link_to ‘虚拟网络列表‘, action: :index %>
	</li>
    <li>
	    <%= link_to ‘虚拟网络拓扑‘, action: :openvpn_topo%>
	   <ul class="nav nav-tabs vmcs-tab" <%= raw ‘style="display:none"‘ if not controller.action_name == ‘openvpn_topo‘ and  not controller.action_name == ‘vlan_topo‘ %>>
          <li<%= raw ‘ class="active"‘ if controller.action_name == ‘openvpn_topo‘ %>>
		      <%= link_to ‘openvpn拓扑‘, action: :openvpn_topo%>
		  </li>
	      <li<%= raw ‘ class="active"‘ if controller.action_name == ‘vlan_topo‘ %>>
		      <%= link_to ‘vlan拓扑‘, action: :vlan_topo%>
		  </li>
        </ul>
	</li>
</ul>