Vertical link in page sides : <p>How can I have links in my pages sides like places i colored in image below and move as page scrolls (fixed position)?</p>

<p><a href="https://i.stack.imgur.com/HzKk0.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/HzKk0.png" alt="sample"></a></p>
