The <hgroup> tag is short sentence of heading group. The <hgroup> tag is used to create a group of heading tags (<h1>-<h6>).
For example, if you have level 1 heading, level 2 heading and you want to grouping these heading leavel tags then you need to use <hgroup> tag. Like as following example.
Example of Code
<hgroup>
<h1>hgroup</h1>
<h2>heading group</h2>
</hgroup>
Output
hgroup
heading group
