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Using semantic HTML would improve the code quality, and it’s advisable to consider using CSS Flexbox or Grid for layout instead of relying on fixed padding, as this approach will enhance the responsiveness and adaptability of your design across different screen sizes. Additionally, rather than duplicating the styles for the .container class in both media queries, create a base style and modify only the properties that differ in the media queries. Finally, you can simplify padding by using shorthand notation for a cleaner and more efficient code structure.