Thanks for commenting. It's a great idea from a design and readability perspective. It sounds like you do not like my implementation - you could be right. Here is another way of doing it.. maybe I'll update the post late:
<div class="desktop-breakline"></div>
with the appropriate @media query.
It's obviously not for every situation. But for landing and marketing pages, headlines, etc, I'd go as far as to say it's absolutely essential.