title: Can CSS :not selector target :before and :after selectors
body: <p>I am looking to to use CSS :not() to target the before selector. Is this possible?</p>
  
  <p><strong>Example:</strong> <a href="https://jsfiddle.net/uuq62b8d/" rel="noreferrer">https://jsfiddle.net/uuq62b8d/</a></p>
  
  <pre><code>a.button:before {
    content: "Show Text";
  }
  
  a.button:not(:before) {
    display: none;
  }
  
  &lt;a href="#" class="button"&gt;Hide Text&lt;/a&gt;
  </code></pre>