title: How to use data-src and src?
body: <p>I am encountering a problem with getting an image to display with the usage of <code>src</code> and <code>data-src</code> of the <code>img</code> tag.</p>
  
  <p>The below work perfectly fine:</p>
  
  <pre><code>&lt;img src = "img/testimage1.jpg"/&gt;
  </code></pre>
  
  <p>The below code doesn't display anything:</p>
  
  <pre><code>&lt;img data-src = "img/testimage1.jpg" alt="first"/&gt;
  </code></pre>