Tailwind helper to show current media query size

React component that shows the current media query size in the bottom corner when in local environment. Import in layout.tsx.

export function TailwindIndicator() {
  if (process.env.NODE_ENV === "production") return null;

  return (
    <div className="fixed bottom-1 left-1 z-50 flex size-6 items-center justify-center rounded-full bg-gray-800 p-3 font-mono text-xs text-white">
      <div className="block sm:hidden">xs</div>
      <div className="hidden sm:block md:hidden">sm</div>
      <div className="hidden md:block lg:hidden">md</div>
      <div className="hidden lg:block xl:hidden">lg</div>
      <div className="hidden xl:block 2xl:hidden">xl</div>
      <div className="hidden 2xl:block">2xl</div>
    </div>
  );
}

source