<header> and <footer>Baseline · Widely available
The <header> and <footer> HTML elements represent content that precedes and follows the main page content, respectively.
Supported in all major browsers for at least 30 months — safe to use without fallbacks. Baseline since Jul 29, 2015. Widely available since Jan 29, 2018.
Browser support
DesktopChrome
1–4Not supported
5+Supportedsince May 25, 2010
Current: 155Edge
12+Supportedsince Jul 29, 2015
Current: 154Firefox
1–3.6Not supported
4+Supportedsince Mar 22, 2011
Current: 157Safari
1–4Not supported
5+Supportedsince Jun 7, 2010
Current: 27MobileChrome Android
18+Supportedsince Jun 27, 2012
Current: 155Firefox Android
4+Supportedsince Mar 29, 2011
Current: 157Safari iOS
1–4Not supported
4.2+Supportedsince Nov 22, 2010
Current: 27How to use
This feature is Baseline widely available — use it freely, no fallback needed.
Example
Full syntax and examples are on MDN: footer.
Feature detection
JS · check before using
const el = document.createElement("footer");
if (!(el instanceof HTMLUnknownElement)) {
// <footer> is supported
}Sub-features
Support for each part of the feature (2). The overall table above shows when the whole feature works.