The three concepts of responsive design are fluid grids, flexible images, and media queries.
Fluid grids refer to the use of relative units of measurement, such as percentages, instead of fixed units like pixels, to ensure that the layout will adapt to different screen sizes.
Flexible images involve using CSS to control the size of images so that they also adjust to different screen sizes.
Media queries allow for the targeting of specific screen sizes and device types in order to apply different CSS styles and layout rules.
Overall, responsive design involves creating websites that are optimized for different screen sizes and devices, providing a seamless and user-friendly experience across all platforms.
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Answer:
The three concepts of responsive design are fluid grids, flexible images, and media queries.
Fluid grids refer to the use of relative units of measurement, such as percentages, instead of fixed units like pixels, to ensure that the layout will adapt to different screen sizes.
Flexible images involve using CSS to control the size of images so that they also adjust to different screen sizes.
Media queries allow for the targeting of specific screen sizes and device types in order to apply different CSS styles and layout rules.
Overall, responsive design involves creating websites that are optimized for different screen sizes and devices, providing a seamless and user-friendly experience across all platforms.