Ask HN: Won't somebody fix the Guardian banner

I'm no webdev, but there must be a better way of implementing the banner for the Guardian website.

Clicking on a story and then scrolling down causes the page to jump as the banner shrinks itself, and the first couple of sentences can be unreadable.

Is this kind of thing ok? I just can't believe that this has been allowed to exist for so long on such a prominent website.

How could this be implemented better?