A header for an <article>:
The <header> tag is supported in Internet Explorer 9+, Firefox, Opera, Chrome, and Safari.
Note: Internet Explorer 8 and earlier versions, do not support the <header> tag.
The <header> tag specifies a header for a document or section.
The <header> element should be used as a container for introductory content or set of navigational links.
You can have several <header> elements in one document.
Note: A <header> tag cannot be placed within a <footer>, <address> or another <header> element.
The <header> tag is new in HTML5.
The <header> tag also supports the Global Attributes in HTML.
The <header> tag also supports the Event Attributes in HTML.
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