"As on [sic] overview, HTML is a hyper text markup language created to give content structure and meaning. CSS, also known as cascading style sheets, is a presentation language created to give content style and appearance."
"Elements are designators that define objects within a page, including structure and content. Some of the more popular elements include h1 through h6, p, a, div, span, strong, and em."
It's friendly to people who have prior experience, but I wouldn't give this to a fresh beginner. What's "content"? What about "objects"? I'd like a beginner's guide to introduce the reader by pointing out what each tag corresponds to on an actual web page so they can relate to it. It feels like a reference guide to HTML rather than an introduction.