title: How do I match the sibling height when parent height is exceeded
body: <p>I have a parent div with a fixed height.</p>
  <p>Inside, two divs displayed inline (next to each other)
  Both divs have a variable height.
  When one of the divs height exceeds the parent height (Overflow is set to scroll), I need both siblings to have the same height.</p>
  <p>height: 100% doesn't work.</p>
  <p>Here is a more clear example:</p>
  <p><a href="https://i.stack.imgur.com/dHnxv.png" rel="nofollow noreferrer">Expected result</a></p>