tag html lang attribute

HTML
The HTML lang attribute is used to identify the language of text content on the web. This information helps search engines return language specific results, and it is also used by screen readers that switch language profiles to provide the correct accent and pronunciation

Syntax
<element lang="language_code">
  
Example
Some French text in a paragraph:

<p lang="fr">Ceci est un paragraphe.</p><html lang
Source

Also in HTML: