Welcome back to CSS three and 30 days.

Today is a unique lesson, and we won't actually be doing any coding within the video.

However, I encourage you to play around with what you're about to learn after the fact we CSS three ninjas like to push the boundaries of Web design, which means that we get to dance on the bleeding edge of supported code.

Unfortunately, everyday ordinary browsing citizens and their old and outdated browser software may not be as fresh as us.

You're not.

There's a CSS three rule that recognizes the downfalls of everyday ordinary, rousing citizens, rectifies the problem and leaves the user blissfully unaware of our epic nous.

It's simple, really just used the at supports rule and pass in a CSS property value pair to test whether or not the browser recognizes it like so now, if the browser understands it will render the code between the curly braces.