title: How to vertically center Wordpress navigation bar
body: <p>I have a navigation bar at following wordpress site: <a href="http://tarjom.ir/demo/pwp" rel="nofollow">http://tarjom.ir/demo/pwp</a></p>
  
  <p>I have two major issues with this navigation bar:</p>
  
  <p>1- I can't vertically align it at the middle. </p>
  
  <p>2- There is a <code>div</code> wrapper as the parent of the <code>&lt;ul&gt;</code> tag that I can't remove it. However I have already set <code>'container' =&gt; ''</code>, but it does not work.</p>
  
  <pre><code>&lt;!-- Navigation bar--&gt;
    &lt;div id='wp_nav_section' class='grid-100 black-gray-bg font-roya' style='min-height: 100px; display: block;height:100%;'&gt;
      &lt;?php wp_nav_menu(array("container" =&gt; 'nav')); ?&gt; 
    &lt;/div&gt;
  &lt;!-- End of navigation bar. --&gt;
  </code></pre>
  
  <p>Here is my wordpress navigation code:</p>
  
  <p>Here is all my CSS related to the wordpress navigation:</p>
  
  <pre><code>.menu
      {
          height: 65px;
          min-height: 60px;   
          padding: 0px;
          text-align: right;
          background-color: #111;
          margin-bottom: 10px;
      }
  .menu ul
      {
       direction: rtl;
       width: 70%;
       margin-right: auto;
       margin-left: auto;
       overflow: hidden;
       height: auto;
       padding-top: 0px;
      }
  .menu li
      { 
        padding: 0px 0px;
        display: inline-block; 
      }
      .menu li a
      {
        color: white;
        text-decoration: none;
        display: block ;
        height: 45px;
        background-color: black; 
        border-right: 2px #333 solid; 
        padding: 16px 7% 3px 3%;
        box-sizing: border-box;
        width: 100px;
        margin: 0px 0px;
        font-size: 110%;
      }
      .menu li a:hover
      {
          background-color: #333;
          border-right: 2px #F90 solid;
      }
  </code></pre>
  
  <p>I need the <code>&lt;ul&gt;</code> tag to be centered vertically in the <code>&lt;div&gt;</code> wrapper.</p>
  
  <p>Thanks in advanced.</p>