<nav class="topbar">
    <div class="topbar-inner">
        <div class="container">
            <a class="brand" href="/admin/formula_list">医案小助手</a>

            <div class="topbar-infomation">
                <ul>
                    <li class="email_drop">
                        <a class='account' href="/admin/logout">
                            <span class="name">退出</span>
                        </a>
                    </li>
                </ul>
            </div>
        </div>
    </div>
</nav>