How can you create a responsive design using CSS?

Creating a responsive design using CSS involves the use of media queries and flexible grid systems, which allow a website to adapt its layout and elements based on the screen size and resolution of the device being used. Media queries enable you to apply different styles for different viewport sizes, ensuring that your content is easily readable and usable on both small and large screens.

By utilizing a flexible grid system, elements on the page can resize and rearrange themselves dynamically, providing a fluid layout that enhances user experience across various devices. This approach not only maintains aesthetic appeal but also improves functionality, ensuring that navigation and interaction remain seamless for the user.

Other strategies, such as using fixed widths for containers or strictly avoiding percentages, restrict the fluidity necessary for true responsiveness. Setting elements to a maximum size alone does not address how they scale on smaller screens or interact with differing viewport dimensions. Therefore, the most effective method for achieving a responsive design is indeed through the implementation of media queries and flexible grid systems.