im Berners‐Lee, Steven Champeon had experience of working with <abbr>SGML</abbr>, the markup language that would so heavily influence <abbr>HTML</abbr>. In dealing with documents that needed to be repurposed for different outputs, he came to value the separation of structure from presentation. A meaningfully marked up document can be presented in multiple ways through the addition of <abbr>CSS</abbr> and JavaScript.</p>

<p>This layered approach to the web allows the same content to be served up to a wid