<div class="main-nav slideout-menu slideout-menu-left" id="menu">
  <div class="flex-container">
    <span class="sidebar-brand">
      <h3 style='font-size: 25px'>Vela Template</h3>
    </span>
  </div> <!-- class="flex-container" -->

  <nav class="sidebar-nav">
    <ul class="metismenu"  id="metismenu" >
      <li><a href="/index.html">Home</a></li>
      <li><a href="/menu1/">Code blocks</a></li>
      <li><a href="" class="has-arrow">Topic</a>
        <ul>
          <li><a href="/menu2/">More goodies</