Fluid grids are web design technique that allows content to be resized and adjusted based on columns. Essentially, fluid grids mean every element on the page occupies the same percentage of space, however large or small the screen becomes. The grid layout can also adapt based on breakpoints, allowing for a seamless and consistent user experience across different devices and screen sizes.
See also: Breakpoints, Responsive design, Media queries
Further reading: What is Responsive Design?
