You
<div> must be closed with </div>. Now please list up all html tags that must be closed
Copilot
Sure, here are some HTML tags that must be closed:

<p>: Paragraph
<h1> to <h6>: Headings
<div>: Division or section in an HTML document
<span>: Inline container
<nav>: Navigation links
<body>: Contains the content of an HTML document
<header>: Container for introductory content
<footer>: Footer of an HTML document
<main>: Main content of an HTML document
<article>: Independent, self-contained content
<section>: Standalone section of a document
<aside>: Content aside from the page content
<details>: Additional details that the user can view or hide
<summary>: Heading for the <details> element
<data>: Machine-readable translation of a given content
<time>: Specific time (or a time period)
<code>: Piece of computer code
<var>: Name of a variable in a mathematical expression or a programming context
<samp>: Sample output from a computer program
<kbd>: Keyboard input
<sub> and <sup>: Subscript and superscript text
<i>: Text in an alternate voice or mood
<b>: Text stylistically offset from normal text without conveying extra importance
<u>: Text with unarticulated annotation
<mark>: Text highlighted for reference purposes
<ruby>, <rt>, and <rp>: Ruby annotations (used in East Asian typography to show pronunciation of East Asian characters)
<bdi>: Part of text that might be formatted in a different direction from other text outside it
<bdo>: Overrides the current text direction
<span>: Inline container1.
Please note that this is not an exhaustive list and there are many more HTML tags that need to be closed. It’s also important to remember that some tags are self-closing and do not require a separate closing tag1. Examples of self-closing tags include <img />, <input />, <br />, and <hr />1.