<div class="tw-shadow tw-w-40 tw-m-auto">
    <div class="ub-menu nav-menu">
        <div class="title">标题1</div>
        <div class="items">
            <a class="active" href="#">标题1-1</a>
            <a href="#">标题1-2</a>
        </div>
        <div class="title">标题2</div>
        <div class="items">
            <a href="#">标题2-1</a>
            <a href="#">标题2-2</a>
        </div>
        <div class="title">标题3</div>
        <div class="items">
            <a href="#">标题3-1</a>
            <a href="#">标题3-2</a>
        </div>
        <a class="page-menu-toggle" href="javascript:;"
           onclick="$('body').toggleClass('ub-menu-page-show')">
            <i class="icon iconfont icon-list"></i>
        </a>
    </div>
</div>