Which of the following is NOT a feature of responsive web design?

Responsive web design focuses on creating websites that provide an optimal viewing experience across a wide range of devices, from desktop computers to mobile phones. A key principle of responsive design is the ability to adapt the layout and content based on the device's screen size and orientation.

Static positioning of elements does not align with the core concept of responsive design. In a responsive layout, elements are designed to be flexible and adjust dynamically to fit different screen sizes. This flexibility ensures that users have a consistent experience, regardless of the device they are using. Static positioning, which keeps elements fixed in place without any adaptability, would hinder the ability to adjust the layout appropriately for various displays.

In contrast, optimized content for different devices, flexible grid layouts, and fluid images that resize all serve to enhance the adaptability and functionality of a webpage in a responsive design context. Flexible grid layouts enable the structure of the page to change according to screen size, while fluid images ensure that visuals resize proportionally, maintaining the integrity of the design. Therefore, the option related to static positioning of elements is not a feature of responsive web design.