Here's what you need to know:
1. Tags: HTML is composed of tags, which are enclosed in angle brackets. For example, is a tag that starts an HTML document.
2. Elements: Tags are used to create elements, such as headings, paragraphs, and images. For example,
creates a top-level heading.
3. Attributes: Tags can also have attributes, such as class and id, which allow you to apply styles and functionality to elements. For example,
creates an image element with a source and alternative text.