Originally,
HTML was primarily designed as a language
for semantically describing scientific documents.
- HTML Living Standard
Elements, attributes, and attribute values in HTML are defined (by this specification) to have certain meanings (semantics).
<section> <header> <footer> <main> <article> <nav>
<big>,<basefont>,<center>,<strike>,background,align 속성
<b>, <i>, <s>, <small>, <u>
<canvas> <video> <figure> srcset 등