Teaching the basics of CSS is essential for anyone who wants to style their HTML documents and create visually appealing web pages. Here’s a structured approach to introduce CSS:

Introduction to CSS:
- CSS stands for Cascading Style Sheets.
- CSS is used to style and layout web pages, including the design, colors, and fonts.
- CSS can be added to HTML in three ways: Inline, Internal, and External.
CSS Syntax:
```
css
selector {
    property: value;
}
```
- Selector: Specifies the HTML element you want to style.
- Property: The aspect of the element you want to change (e.g., color, font-size).
- Value: The value assigned to the property (e.g., red, 16px).