Code Block

Read-only code snippet in a bordered, scrollable panel with a copy button that fades in on hover or keyboard focus and an optional uppercase language label in the corner. Reach for it whenever a page has to show code the reader will copy rather than edit: install and CLI commands in a README or docs site, curl and SDK examples in API reference pages, config file snippets, error output or stack traces, migration and changelog before/after blocks, an onboarding "paste this into your terminal" step, or the code sample on a developer landing page. Common asks it answers: "code block", "code snippet component", "copy code button", "pre code with copy", "terminal command block", "docs code sample", "shadcn code block", "snippet with language label", "copyable command". shadcn/ui has no code block at all, so this normally gets rebuilt from a bare <pre> plus a hand-wired clipboard button that forgets the copied state and never reveals itself to a keyboard user — here the button is inside focus-within, so tabbing to it makes it appear, and the copied confirmation is announced (it composes pulld's copy-button). Deliberately a container, not a highlighter: pass a `code` string and it renders semantic <pre><code> with `data-language` set, so it costs no bundle and stays out of the way if you later pipe in shiki, Prism, or highlight.js — unlike react-syntax-highlighter, which drags a whole grammar bundle in for a snippet you only wanted to display. Long lines scroll horizontally instead of wrapping. Extra props land on the wrapper div. No dependencies beyond your cn util.