<div class="left-sidebar left-sidebar-1 overflow-auto h-screen">
    <div class="left-sidebar-item pointer-events-none ">
      <span class="m-l-15">智慧电商</span>
    </div>
    <ul>
      <li class="l0">
        <a class="left-sidebar-item hidden-sibling" href="#" >
          <i class="iconfont icon-training text-center"></i>
          <span class="title">一级菜单</span>
          <svg stroke="currentColor" fill="none" stroke-width="2" viewBox="0 0 24 24" stroke-linecap="round" stroke-linejoin="round" class="ml-auto arrow" height="1em" width="1em" xmlns="http://www.w3.org/2000/svg">
            <polyline points="9 18 15 12 9 6"></polyline>
          </svg>
        </a>
        <ul>
          <li class="l1">
            <%= link_to "#", class: "left-sidebar-item " do %>
              <span class="title">二级菜单1</span>
            <% end %>
          </li>
          <li class="l1">
            <%= link_to "#", class: "left-sidebar-item hidden-sibling" do %>
              <span class="title">二级菜单2</span>
              <svg stroke="currentColor" fill="none" stroke-width="2" viewBox="0 0 24 24" stroke-linecap="round" stroke-linejoin="round" class="ml-auto arrow" height="1em" width="1em" xmlns="http://www.w3.org/2000/svg">
                <polyline points="9 18 15 12 9 6"></polyline>
              </svg>
            <% end %>
            <ul>
              <li class="l2">
                <%= link_to "#", class: "left-sidebar-item hidden-sibling" do %>
                  <span class="title">三级菜单1</span>
                  <svg stroke="currentColor" fill="none" stroke-width="2" viewBox="0 0 24 24" stroke-linecap="round" stroke-linejoin="round" class="ml-auto arrow" height="1em" width="1em" xmlns="http://www.w3.org/2000/svg">
                    <polyline points="9 18 15 12 9 6"></polyline>
                  </svg>
                <% end %>
                <ul>
                  <li class="l3">
                    <%= link_to "#", class: "left-sidebar-item" do %>
                      <span class="title">四级菜单1</span>
                    <% end %>
                  </li>
                </ul>
              </li>
            </ul>
          </li>
        </ul>
      </li>
      <li class="l0">
        <a class="left-sidebar-item hidden-sibling" href="#" >
          <i class="iconfont icon-training text-center"></i>
          <span class="title">一级菜单</span>
          <svg stroke="currentColor" fill="none" stroke-width="2" viewBox="0 0 24 24" stroke-linecap="round" stroke-linejoin="round" class="ml-auto arrow" height="1em" width="1em" xmlns="http://www.w3.org/2000/svg">
            <polyline points="9 18 15 12 9 6"></polyline>
          </svg>
        </a>
        <ul >
          <li class="l1">
            <%= link_to "#", class: "left-sidebar-item " do %>
              <i class="iconfont icon-training text-center"></i>
              <span class="title">二级菜单1</span>
            <% end %>
          </li>
          <li class="l1">
            <%= link_to "#", class: "left-sidebar-item hidden-sibling" do %>
              <i class="iconfont icon-training text-center"></i>
              <span class="title">二级菜单2</span>
              <svg stroke="currentColor" fill="none" stroke-width="2" viewBox="0 0 24 24" stroke-linecap="round" stroke-linejoin="round" class="ml-auto arrow" height="1em" width="1em" xmlns="http://www.w3.org/2000/svg">
                <polyline points="9 18 15 12 9 6"></polyline>
              </svg>
            <% end %>
            <ul >
              <li class="l2">
                <%= link_to "#", class: "left-sidebar-item hidden-sibling" do %>
                  <i class="iconfont icon-training text-center"></i>
                  <span class="title">三级菜单1</span>
                  <svg stroke="currentColor" fill="none" stroke-width="2" viewBox="0 0 24 24" stroke-linecap="round" stroke-linejoin="round" class="ml-auto arrow" height="1em" width="1em" xmlns="http://www.w3.org/2000/svg">
                    <polyline points="9 18 15 12 9 6"></polyline>
                  </svg>
                <% end %>
                <ul >
                  <li class="l3">
                    <%= link_to "#", class: "left-sidebar-item" do %>
                      <i class="iconfont icon-training text-center"></i>
                      <span class="title">四级菜单1</span>
                    <% end %>
                  </li>
                </ul>
              </li>
            </ul>
          </li>
        </ul>
      </li>
    </ul>
  </div>