There's this meme. It is a significant meme. It encompasses web standards. And, it goes like this.
Emil Stenström started it with Friendly Bit » Levels of CSS knowledge [January 11, 2006].
All web developers should read each and Every one.
It doesn’t matter what Level of Knowledge one has or, Even If, one hasn’t a clue - Exactly - what these authors have written! [Note: If you read all of the above articles, you’ll understand.] If you read these articles and comprehend some things - Then - you have some Level of Knowledge. If you are not at a high Level, it’s small consequence. One can always become more knowledgeable, can’t you. If one reads all of the articles, one may divine one's Level of Web Standards Knowledge.