What are cascading style sheets primarily used for?

Cascading style sheets (CSS) are primarily utilized to control the appearance of a webpage. This involves defining the visual presentation of web documents, such as layout, colors, fonts, spacing, and overall design. By separating content from design, CSS allows for greater flexibility and consistency in styling across multiple pages, making it easier to manage the aesthetics of a website.

For example, a web designer can create a single CSS file that applies styles to an entire website, ensuring uniformity in design and simplifying updates. When changes need to be made, the designer can modify the CSS file rather than updating individual HTML files, which enhances efficiency and reduces the risk of errors.

In contrast, adding interactivity to webpages often involves JavaScript or other programming languages, which handle dynamic functionalities rather than visual elements. Managing content databases pertains to backend development and data storage, which is outside the scope of CSS. Debugging web applications involves identifying and fixing issues in code, which also does not relate to the primary function of CSS.