title: Group rows in HTML table
body: <p><a href="https://i.stack.imgur.com/p6vQ9.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/p6vQ9.png" alt="enter image description here" /></a></p>
  <p>so is it basically a normal table with an extra header with columns and rows grouped at the end, it is possible to do something like this in HTML or maybe using css?</p>