| Tag | Usage |
|---|---|
| <header> | Header of the site/article |
| <footer> | Footer of the site/article |
| <nav> | Navigation functionality of the site |
| <aside> | Content related to the main flow |
| <article> | Standalone piece of the content |
| <section> | Group different articles or define different sections of a single article |
| <hgroup> | Groups header |
| <figure> | Encapsulates a figure |
| <figcaption> | Caption for a figure |
| <time> | Marking up times and dates |
If there is an unknown element into a web page, by default the browser will just treat it like a <span>.