What must be preserved when content is positioned with CSS?

• A. Understanding and meaning of content independent of the CSS positioning
• B. The exact visual order produced by CSS
• C. The content must be reordered by CSS
• D. The content must be hidden from assistive technologies

Answer: (B)

When content is positioned with CSS, the user’s experience hinges on the order in which things appear visually on the page. Preserving that exact visual order is important because it keeps the page’s flow stable and predictable across different layouts and screen sizes. Even though CSS can move elements around, the sequence in which they are presented to the viewer should remain consistent, so readers can follow the content without confusion. The meaning and structure of the content themselves stay the same; CSS handles presentation, but the visible sequence should not be randomly altered. Hiding content from assistive technologies isn’t required, and forcing CSS to reorder content isn’t necessary for the intended presentation.