Answer:
False
Step-by-step explanation:
Both CSS (Cascading Style Sheets) and HTML (Hypertext Markup Language) have online documentation. CSS and HTML are separate languages with different purposes. HTML is used for structuring and presenting content on the web, while CSS is used for styling and formatting the appearance of that content.
Both languages have their own specifications and documentation available online. HTML documentation provides information about the various elements, attributes, and their usage, while CSS documentation covers properties, selectors, and how to apply styles to HTML elements.
Therefore, it is incorrect to say that only CSS has online documentation. Both CSS and HTML have extensive documentation available for reference.