The HTML <header> element represents a group of introductory or navigational aids. It may contain some heading elements but also other elements like a logo, a search form, and so on.
| Content categories | Flow content, palpable content. |
|---|---|
| Permitted content |
Flow content, but with no <header> or <footer> descendant. |
| Tag omission | None, both the starting and ending tag are mandatory. |
| Permitted parents | Any element that accepts flow content. Note that a <header> element must not be a descendant of an <address>, <footer> or another <header> element. |
| Permitted ARIA roles | group, presentation |
| DOM interface | HTMLElement |
The <header> element is not sectioning content and therefore does not introduce a new section in the outline.
This element only includes the global attributes.
<header> <h1>Main Page Title</h1> <img src="mdn-logo-sm.png" alt="MDN logo"> </header>

| Specification | Status | Comment |
|---|---|---|
| WHATWG HTML Living Standard The definition of '<header>' in that specification. | Living Standard | |
| HTML5 The definition of '<header>' in that specification. | Recommendation |
| Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|---|
| Basic support | 5 | (Yes) | 4.0 (2.0) | 9.0 | 11.10 | 4.1 |
| Feature | Android | Edge | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|
| Basic support | 2.2 | (Yes) | 4.0 (2.0) | 9.0 | 11.0 | 5.0 |
<body>, <nav>, <article>, <aside>, <h1>, <h2>, <h3>, <h4>, <h5>, <h6>, <hgroup>, <footer>, <section>, <address>.
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https://developer.mozilla.org/en-US/docs/Web/HTML/Element/header