I am a fast webpage
I hate to be negative, but what really is the point of this?  That a simple webpage without any content can be fast?  Of course it can.<p>Is it desirable to inline your CSS, "like a boss?"  Maybe if you have one single web page.  What if you have dynamic content and your users intend to browse more than one page?  With externalized CSS, that is all cached.<p>Same with images.  If I'm building a web application, I certainly do not want inlined images.  I want those on a CDN, cached, and I want the page to load before the images.<p>Not only is this not particularly useful advice, it's bad advice.