Summary: Breakpoints determine when a webpage may adjust to different layouts. They help designers (and developers) maintain layout consistency across multiple screen sizes, orientations, and devices.
Grids, Layouts, and Responsive Design
Both grids and layouts are essential components of responsive web design . In responsive design, the design adapts and reacts to device characteristics and screen sizes.
Grids provide an organized way to efficiently create layouts in web and mobile designs. A grid is made up of columns, gutters, and margins that provide a structure for the layout of elements on a page.
A layout refers to how the different content and UI elements that make up a page are positioned on a screen. Layouts allow designers to utilize the space available on a screen or device to make the design and content most meaningful for users.