title: ion-navbar background image not appearing - showing only white - Ionic 3
body: <p>I have an <code>ion-header</code> section like this:</p>
  
  <pre><code>&lt;ion-header (swipeRight)="toProfile()"&gt;
    &lt;ion-navbar #clickme class="itemadspace" [@slideDown]="downState" no-lines no-padding&gt;
      &lt;h3 class="feedtitle"&gt;Stylist Feed&lt;/h3&gt;
      &lt;div (tap)="loadPost()" class='pluscontainer'&gt;
        &lt;ion-icon class='plussy' name="add"&gt;&lt;/ion-icon&gt;
      &lt;/div&gt;
    &lt;/ion-navbar&gt;
  
    ...
  
  &lt;/ion-header&gt;
  </code></pre>
  
  <p>The CSS for <code>ion-navbar</code> is the <code>itemadspace</code> class is:</p>
  
  <pre><code>    .itemadspace {
          z-index: 1;
          position: fixed;
          top: 0;
          left: 0;
          background-image: url('../../assets/tresemme.png');
          background-repeat: no-repeat;
          background-size:cover;
          text-align: center;
      }
  </code></pre>
  
  <p>No image shows, the background for the <code>ion-navbar</code> component is white. Any idea how to get the background image to work?</p>