May 05, 2021 HTML Reference Manual
Labels can be used to define where liner is required in HTML documents, unlike labels, which are not new if the browser window is wide enough, and conversely, where the label is added, refer to the following example:
A piece of text with Word Break Opportunity:
All major browsers support the hashtag, except Internet Explorer.
The Word Break Opportunity label specifies where line breaks are appropriate in the text.
Tip: If the word is too long, or if you're worried that the browser will line up in the wrong place, you can add Word Break Opportunity using the .lt;wbr?gt; element.
The label is the new label in HTML5.
Labels support the global properties of HTML.
The tag supports the event properties of HTML.
HTML tutorial: HTML formatting