title: Css button:focus
body: <p>I want to add focus to my buttons so when someone clicks on one, it'll change color<br>
  I tried <code>.button:focus</code> but nothing happens</p>
  
  <p>Here's my snippet.</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false">
  <div class="snippet-code">
  <pre class="snippet-code-css lang-css prettyprint-override"><code>ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: #333;
  }
  
  li {
    float: left;
  
  }
  
  .button {
    padding:0;
    margin:0;
    border:none;
    font-size:14px;
    background:#333;
    color: grey;
    height:50px;
    width:134px; 
    font-variant:small-caps;
  }
  
  .button:hover {
    padding:0;
    margin:0;
    border:none;
    font-size:14px;
    background:#333;
    color: #FF0000;
    height:50pxpx;
    width:134px; 
    text-decoration:none;
    font-variant:small-caps;
    background-color: #111;
  }
  
  .button:focus {
    background:blue;
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;form action='' method="POST"&gt;
    &lt;ul&gt;
      &lt;li&gt;&lt;input type="submit" name="login" class="button" value="Login In"&gt;&lt;/li&gt;
      &lt;li&gt;&lt;input type="submit" name="prodcuts" class="button" value="Products"&gt;&lt;/li&gt;
      &lt;li&gt;&lt;input type="submit" name="question" class="button" value="Question"&gt;&lt;/li&gt;
    &lt;/ul&gt;
  &lt;/form&gt;</code></pre>
  </div>
  </div>
  </p>