HyperText Markup Language (HTML) is the standard markup language for creating web pages and web applications. With Cascading Style Sheets (CSS), and JavaScript, it forms a triad of cornerstone technologies for the World Wide Web. … … HTML describes the structure of a web page semantically and originally included cues for the appearance of the document.
— Wikipedia
- Wikipedia – HyperText Markup Language (HTML)
- HTML Standard
- HTML Ruby Support