<header> element represents introductory content for its nearest ancestor sectioning content or sectioning root element. A
<header> typically contains a group of introductory or navigational aids.
Note: The header element is not sectioning content; it doesn’t introduce a new section.
<header> <p>Welcome to...</p> <h1>Voidwars!</h1> </header>
In this example, the
<article> has a
<article> <header> <h1>Flexbox: The definitive guide</h1> </header> <p>The guide about Flexbox was supposed to be here, but it turned out Wes wasn’t a Flexbox expert either.</p> </article>