title: Add a clickable button on the top-right corner of the SharePoint online modern pages
body: <p>I have a modern communication site inside our SharePoint Online tenant, and we want to do the following modification to our top navigation area:-</p>
  <ol>
  <li>Add a clickable button on the top-right corner &gt;&gt; and when users click on this an external link will open.</li>
  </ol>
  <p>Here is what we need to build (The Green button):-</p>
  <p><a href="https://i.stack.imgur.com/s1bW4.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/s1bW4.png" alt="enter image description here" /></a></p>
  <p>So can anyone advice how we can achieve the above?</p>
  <p>Thanks</p>