title: Transparent background color in image
body: <p>How can I <strong>delete or make transparent a specific background color</strong> in an image or backgroundimage?
  For example, I have an image and I want remove all the white pixels in it to show what is "behind" them on the page.</p>
  
  <pre><code>&lt;div style="
      background-color: #F4F4F7;
      background-image: url('wa.jpg');
      background-repeat: no-repeat;
      background-position: right bottom;
      background-size: 200px 280px;"
  align="left"&gt;
  </code></pre>
  
  <p>What functions or attributes can accomplish this?</p>