HTML5 labels are used to represent parts that are not very relevant to the content of the current page and are typically used to display sidebars or supplemental content, such as directories, indexes, and so on.
Try it out . . .
<p>My family and I visited The Epcot center this summer.</p> <aside> <h4>Epcot Center</h4> <p>The Epcot Center is a theme park in Disney World, Florida.</p> </aside>
IE 9 Plus, Firefox, Opera, Chrome, and Safari all support the hashtag.
Note: IE 8 or earlier versions of IE browsers do not support the label.
Label definition and instructions for use
The label defines the content outside the label.
The content of the aside should be relevant to the content in the vicinity.
The difference between HTML 4.01 and HTML5
The label is the new label for HTML5.
Tips and comments
Tip: The content of slt;aside can be used as a sidebar for articles.
Note: Don't mark the text in parentheses with the element, because this type of text (that is, the text in parentheses) is considered part of its content stream.
Labels support the global properties of HTML.
The event property
The tag supports the event properties of HTML.