This is a CSS tutorial page with a black background and white text.
CSS stands for Cascading Style Sheets and is used to style the appearance of web pages.
CSS selectors are used to target specific HTML elements and apply styles to them.
CSS properties define the visual properties of HTML elements, such as color, size, and layout.
The CSS box model describes how HTML elements are displayed and sized.
That's the end of the CSS tutorial. You've learned the basics of CSS.