Which tag is utilized for structuring content in sections for CSS control?

The div tag is a fundamental element in HTML that is primarily used to create sections or divisions in a web page. It allows developers to group content together, applying CSS styles to these groups effectively. This versatility makes it an essential tool for structuring content, as sections can be styled independently, facilitating layout designs and ensuring the content is organized for both visual appeal and accessibility.

Using the div tag, developers can create distinct sections where specific styles can be applied, such as margins, padding, backgrounds, and more. This ability to isolate and control styles for different sections is a cornerstone of responsive web design, enabling sites to adapt to various devices and screen sizes.

Other tags like the details tag, article tag, and caption tag serve different purposes. The details tag is used to create a disclosure widget from which users can obtain additional information or details. The article tag defines independent, self-contained content, making it more semantic than a simple sectioning tag. The caption tag is used within a table to provide a title or explanation for that table. While these tags contribute to semantic structure and functionality in their own contexts, the div tag remains the primary choice for CSS control related to sectioning content.