HTML History and Optimization Cheat Sheet

4 decades, 8 HTML specifications, 132 elements. What element has what meaning, has been part of what specification(s), is void, has an optional end and perhaps also an optional start tag?

If you’re a professional who works with HTML, the “HTML History and Optimization Cheat Sheet” provides you with a historical perspective and an advanced basis for code optimization. (It’s also great just for learning HTML.)

(You will receive two files, a PDF and an XLSX spreadsheet. The XLSX file works but has inconsistent text formatting. Later updates should improve this.)