title: How to align & center images in a row using css?
body: <p>I have this code that I've written to place an image of an icon in the bottom of a dropdown menu:</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>.menu li:last-child img {
    display: block;
    margin: auto;
    position: absolute;
    bottom: 20px;
    left: 0;
    right: 0;
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;ul class="menu"&gt;
    &lt;li class="last"&gt;&lt;img src="facebooktransparent.png"&gt;&lt;img src="facebooktransparent.png"&gt;&lt;img src="facebooktransparent.png"&gt;&lt;img src="facebooktransparent.png"&gt;&lt;/li&gt;
  &lt;/ul&gt;</code></pre>
  </div>
  </div>
  </p>
  <p>How to center a total of 4 icons in a row? All four together should then be centered.</p>