Well, to use Randall's words, isn't HTML using words and symbols to describe the way some points of light show up? Heck, CSS can even make those points of light

Well, to use Randall's words, isn't HTML using words and symbols to describe the way some points of light show up? Heck, CSS can even make those points of light change over time nowadays. So, why is HTML/CSS not 'computer science'. Is programming in C 'computer science'? (I'd argue that only the smallest part of our field is really 'CS', the rest is closer to engineering).