Add the class to href tag
<p>If link on page contains <code>site.com</code>. Code should add class for <code>&lt;a href</code> for this link.</p>

<p>Example:<br>
<code>&lt;a href="https://soundcloud.com/*"&gt;link&lt;/a&gt;</code><br>
=><br>
<code>&lt;a href="https://soundcloud.com/*" class="MyClass"&gt;link&lt;/a&gt;</code><br>
Not for all <code>&lt;a href</code>!<br>
How to?</p>
