CSS' clip-path property is your ticket to shape-shifting the monotonous, boxy layouts traditionally associated with flat, responsive design. Once you get your hands dirty with clip-path, there’s no end to the shapes you can generate, simply by tweaking a few values.
Published in Smashing Magazine, May 2015.

If you’re using CSS3 properties for graceful degradation, it’s probably fine to drop vendor-prefix support for certain properties. It’s best to educate clients about future maintenance woes and why it’s absolutely fine if Firefox 3.6 users will see square corners and no shadows, as long as you’re not breaking the site's layout.

Captions on hover are smoother and cooler with a touch of animation. With the power of CSS3, we can create transitions that are hardware accelerated and therefore performance-optimised (or way faster!) than anything you can cook up with Javascript.