title: White row below main menu and above jumbotron
body: <p>White row appeared below main menu and above jumbotron on a drupal site. I am unable to remove it.
  I think that it is css problem but I can't find what exactly causing it. Here is the link to codepen: <a href="https://codepen.io/lomachx/pen/WNbLgYa" rel="nofollow noreferrer">https://codepen.io/lomachx/pen/WNbLgYa</a></p>
  
  <pre><code> &lt;body class="html front not-logged-in no-sidebars page-node i18n-ru"&gt;
      &lt;div id="skip-link" class="skip-link"&gt;
          &lt;a href="#main-content" class="element-invisible element-focusable"&gt;Skip to main content&lt;/a&gt;
      &lt;/div&gt;
      &lt;div class="menu-wrap"&gt;  
          &lt;div class="full-wrap logo-wrap"&gt;&lt;!--c--&gt;
              &lt;div id="logo"&gt;
                  &lt;a href="/ru" title="Main"&gt;&lt;img src="img/logo.png"/&gt;&lt;/a&gt;
              &lt;/div&gt;
          &lt;h1 id="site-title"&gt;
              &lt;a href="/ru" title="Main"&gt;Cool Site&lt;/a&gt;
          &lt;/h1&gt;
              &lt;nav id="main-menu"  role="navigation"&gt;
                  &lt;a class="nav-toggle" href="#"&gt;Navigation&lt;/a&gt;
                  &lt;div class="menu-navigation-container"&gt;
                      &lt;ul class="menu"&gt;&lt;li class="first leaf"&gt;&lt;a href="/ru" title=""    class="active"&gt;Main&lt;/a&gt;&lt;/li&gt;
                          &lt;li class="leaf"&gt;&lt;a href="/ru/articles" title=""&gt;Articles&lt;/a&gt;&lt;/li&gt;
                          &lt;li class="last leaf"&gt;&lt;a href="/ru/about"&gt;About&lt;/a&gt;&lt;/li&gt;
                      &lt;/ul&gt;
                  &lt;/div&gt;
              &lt;/nav&gt;
          &lt;/div&gt;
      &lt;/div&gt;
      &lt;div class="header"&gt;&lt;!--c--&gt;  
      &lt;div class="homebanner"&gt;  
      &lt;/div&gt;
      &lt;!--New navbar --&gt;
      &lt;div&gt;
          &lt;nav class="navbar-lower" role="navigation"&gt;
              &lt;div class="region region-second-menu"&gt;
                  &lt;div id="block-system-navigation" class="block block-system block-menu"&gt;
                      &lt;div class="content"&gt;
                          &lt;ul class="menu"&gt;
                              &lt;li class="first last leaf"&gt;&lt;a href="/ru" title=""     class="active"&gt;Главная&lt;/a&gt;&lt;/li&gt;
                          &lt;/ul&gt;  
                      &lt;/div&gt;
                  &lt;/div&gt; &lt;!-- /.block --&gt;
              &lt;/div&gt;
          &lt;/nav&gt;
      &lt;/div&gt;   
  &lt;/div&gt;
  &lt;div class="bckgr-wrap"&gt;
    &lt;div&gt;&lt;H1&gt;Nest&lt;/H1&gt;&lt;/div&gt;
  &lt;/div&gt;
  &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>