title: Changing colour in Markdown <mark> tag
body: <p>I currently discovered the markdown  element, which lets me mark some text</p>
  <pre><code>&lt;mark&gt;Marked text&lt;/mark&gt;
  </code></pre>
  <p>This results in this very nice looking pdf-text:</p>
  <p><a href="https://i.stack.imgur.com/RRa6e.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/RRa6e.png" alt="enter image description here" /></a></p>
  <p>But how do I change the colour from it's default yellow to another colour?</p>