title: CSS3 Keyframes animation doesn't work
body: <p>I am using css3 to animate sprite from the left to right, using Keyframes animation. Anyone help? How to fix this?</p>
  
  <pre><code>&lt;!DOCTYPE html&gt;
  &lt;html&gt;
  &lt;head&gt;
      &lt;meta charset="utf-8"&gt;
      &lt;title&gt;&lt;/title&gt;
  &lt;/head&gt;
  &lt;style&gt;
  #adam{
      background:url(adam.png);
      width: 120px;
      height: 180px;
      animation: walk-east 1.0s steps(8) infinite;
  }
  @keyframes walk-east {
      from { background-position: 0px; }
      to { background-position: -960px; }
  }
  &lt;/style&gt;
  &lt;body&gt;
  
  &lt;div id="adam"&gt;&lt;/div&gt;
  
  
  &lt;body&gt;
  &lt;/html&gt;
  </code></pre>
  
  <p><a href="https://www.adamkhoury.com/demo/sprite_sheets/adam.png" rel="nofollow">https://www.adamkhoury.com/demo/sprite_sheets/adam.png</a></p>