25 new html tags

Here are 25 new HTML tags that have been introduced in recent years or are being proposed for future use:

1. <dialog>: Represents a dialog box or a conversation.
2. <menuitem>: Represents a menu item.
3. <progress>: Represents a progress bar.
4. <meter>: Represents a gauge or a meter.
5. <details>: Represents a section of details that can be expanded or collapsed.
6. <summary>: Represents a summary or a heading for a <details> element.
7. <command>: Represents a command or an action.
8. <menu>: Represents a menu.
9. <nav>: Represents a section of navigation links.
10. <section>: Represents a section of related content.
11. <article>: Represents an independent piece of content, such as a blog post or a news article.
12. <aside>: Represents a piece of content that is related to the main content, but not essential to it.
13. <figure>: Represents a figure or an image, along with a caption.
14. <figcaption>: Represents a caption for a <figure> element.
15. <header>: Represents a header or a title for a section of content.
16. <footer>: Represents a footer or a copyright notice for a section of content.
17. <main>: Represents the main content of a document.
18. <section>: Represents a section of related content.
19. <time>: Represents a date and time.
20. <datagrid>: Represents a data grid or a table.
21. <datagriditem>: Represents a single item in a <datagrid> element.
22. <datagridheader>: Represents a header for a <datagrid> element.
23. <datagridfooter>: Represents a footer for a <datagrid> element.
24. <datagridcell>: Represents a cell in a <datagrid> element.
25. <datagridrow>: Represents a row in a <datagrid> element.

Note that some of these tags are still experimental or proposed, and may not be supported by all browsers or devices. Additionally, some of these tags may have similar functionality to existing HTML elements, but with a more specific or semantic meaning.