What is a tag in HTML?

In HTML, a tag is a fundamental building block. It's a command that looks like this: <tag_name>. Tags are used to define and structure the content of an HTML document. Here are a few key points about HTML tags:

• Opening and Closing Tags: Most tags come in pairs: an opening tag (like <p>) and a closing tag (like </p>). The content between these two tags is the element's content.
• Self-closing Tags: Some tags, like <br> (for line break) or <img> (for images), don't need a closing tag. They are called self-closing tags.
• Tag Attributes: Some tags can have attributes, which provide additional information. For example, the <a> tag (used for links) can have an href attribute to specify the link's destination, like this: <a href="https://www.example.com">Link Text</a>.