title: how to set header background color in ionic 4
body: <p>I am trying in different way which I followed link(<a href="https://stackoverflow.com/questions/53531819/how-to-set-background-color-ionic-4">How to set background color IONIC 4</a>) for header background color and tried as per ionic 2 and ionic 3 as well:</p>
  
  <p>I am able to make background color for ion-content, but background color is not coming for header.</p>
  
  <p>Code:</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;ion-header&gt;
      &lt;ion-toolbar style="background-color: red"&gt;
          &lt;ion-title&gt;Login&lt;/ion-title&gt;
      &lt;/ion-toolbar&gt;
  &lt;/ion-header&gt;</code></pre>
  </div>
  </div>
  </p>
  
  <p>Please need your support.</p>