title: Change scrollbar height
body: <p>I would like to know if it's possible to change scrollbar height like this image:</p>
  <p><a href="https://i.stack.imgur.com/bZQ6T.png" rel="noreferrer"><img src="https://i.stack.imgur.com/bZQ6T.png" alt="enter image description here" /></a></p>
  <p>I tried with</p>
  <pre><code>::-webkit-scrollbar {max-height: 50%; height: 50%;}
  </code></pre>
  <p>Or</p>
  <pre><code>::-webkit-scrollbar-track {max-height: 50%; height: 50%;}
  </code></pre>
  <p>But nothing happened</p>
  <hr />
  <p>Thank</p>