title: changing top padding in javascript
body: <p>Here's how I set my top padding in my css:</p>
  
  <pre><code>body {
      font-size: {{ font_size }}px;
      margin: 0;
      padding: 100px 0 20px 0;
      width:100% !important;
  }
  </code></pre>
  
  <p>How do I change the top padding, which is 100px on the example above using the simplest javascript function <strong>without using jQuery</strong>?</p>