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The hgroup tag
The <hgroup> is a second-level element, used to wrap one or more heading elements (<h1> to <h6> ), such as the title and sub-heading. As the <hgroup> is only allowed to contain heading elements, some examples might be the easiest way to show when and where the <hgroup> should be used.
An article with title
When there is just one title, there is no need for the <hgroup> element:
<article>
<header>
<h1>All about flour</h1>
</header>
</article>
An article with title and metadata
Still, there is just one title, so even though there is some metadata about the article, the <hgroup> element is not relevant:
<article>
<header>
<h1>All about flour</h1>
<p>Published on January 12th</p>
</header>
</article>
An article with title and subtitle
Now we have to titles, so we can use the <hgroup> element:
<article>
<header>
<hgroup>
<h1>All about flour</h1>
<h2> Wheat flour is the backbone of the baked goods we love</h2>
</hgroup>
</header>
</article>
An article with title, subtitle and metadata
When we have several title and metadata, the <hgroup> element only contains the actual titles (which should be marked up with the <h1> trough <h6> elements):
<article>
<header>
<hgroup>
<h1>All about flour</h1>
<h2> Wheat flour is the backbone of the baked goods we love</h2>
</hgroup>
<p>Published on January 12th</p>
</header>
</article>
What you have learned
- The <hgroup> element is always inside a <header> element
- The <hgroup> element only contains headings (such as subtitles or tag-lines), which are marked up with the <h1> trough <h6> elements
- All other <header> relevant content should be outside of the <hgroup> element