Now here's a thing.
Look at the majority of websites and you'll see that the headings are not fully responsive. They often change at breakpoints but wold;t it be nice for them to scale based on the width of the browser window?
Well check this out. The heading above does scale based on the browser window's width. It really sets off a site to use responsive headings as the way to go and here how it looks. Scale down the side of the screen down and look at how the headings maintain their layout until they get to a really small size. Try it out. I'll wait!!!