title: Apply background color of a div using ionic 4
body: <p>How to change background color of the below <code>div</code> using ionic4</p>
  
  <pre><code>&lt;div class="changeColor"&gt;hello world&lt;/div&gt;
  </code></pre>
  
  <p>what i tried is below</p>
  
  <pre><code>.changeColor{
      //width:100%;//notworking
      //background-color: white; //not working
  
  
         --background:white !important;
  }
  </code></pre>
  
  <blockquote>
    <p>Only inline style is working ?. I think i am facing this because of <strong>shadow dom</strong></p>
  </blockquote>
  
  <p>Any help ??</p>