title: How to align icon to center inside div element?
body: <p>I would like to center icon to the div element "rectangle". Any other alternative solution is also welcomed.</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-css lang-css prettyprint-override"><code>body {
    background-color: black;
  }
  
  .rectangle {
    width: 125px;
   height: 125px;
   -webkit-border-radius: 5px;
   -moz-border-radius: 5px;
   border-radius: 5px;
   background-color: #fff;
  }
  
  h3 {
    color: #fff;
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet"/&gt;
  &lt;div class="rectangle"&gt;
    &lt;span&gt;&lt;i class="fa fa-quora" aria-hidden="true" style="font-size: 75px;" align="center"&gt;&lt;/i&gt;&lt;/span&gt;
  &lt;/div&gt;
  &lt;h3&gt;Quora&lt;/h3&gt;</code></pre>
  </div>
  </div>
  </p>