Container

XS, under 350B gzipped

A centred, max-width content column.

Category: Media & layout
Budget: xs, static display primitive
Runtime deps: None

Preview

Content

This is the exact fixture the conformance suite renders in CI. Switch the language to see the component mirror and reformat.

Install

npx shadcn@latest add https://kata-ui-rho.vercel.app/r/container.json

Copies the source into your project. Pulls in 1 primitive: cn.

Source

import { cn } from "../lib/cn";

export interface ContainerProps {
  children: React.ReactNode;
  /** Max width in Tailwind's scale. */
  size?: "sm" | "md" | "lg" | "xl";
  className?: string;
}

const SIZES = { sm: "max-w-2xl", md: "max-w-4xl", lg: "max-w-6xl", xl: "max-w-7xl" } as const;

/**
 * A centred, max-width content column. Horizontal padding uses `px-`, which
 * Tailwind already resolves to logical `padding-inline` — no separate RTL
 * handling needed for a symmetric container.
 */
export function Container({ children, size = "lg", className }: ContainerProps) {
  return <div className={cn("mx-auto w-full px-5", SIZES[size], className)}>{children}</div>;
}

What CI checks

Bundled, minified and gzipped against its tier budget
Audited by axe in the state previewed above
Rendered through react-dom/server with no browser globals
Scanned for network calls, dangerous sinks, and unguarded animation

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