The viewport of every device you are asked to support, in the CSS pixels a media query actually reads, with the Tailwind breakpoint each one lands in.
Because 1179 is hardware pixels. CSS sees 393 at a device pixel ratio of 3, and 393 is the number your breakpoints are compared against.
Design for the ranges between them. A layout pinned to one phone breaks on the next; the list is here to tell you where the crowds are, not to be a set of targets.
Which Tailwind breakpoint that width satisfies. An iPad at 820 is md but not lg, which is exactly the case people forget to check.
2189 blocks and 1325 pieces for shadcn/ui and Tailwind, built on the same tokens these tools write. Install one with a command and the code is yours.
Browse the blocksNo signup for the tools. MIT for free blocks, commercial licence for Pro.