20 Tailwind CSS Kbd Keys
19 / 20

All 20 in 20 Tailwind CSS Kbd Keys

  1. 01Tailwind CSS Kbd Tag Styling for Inline Keyboard Keys
  2. 02Tailwind 3D Keycap Button with Press-Down Effect
  3. 03Tailwind Keyboard Shortcut Combo with Plus Separators
  4. 04Flat Minimalist Tailwind Kbd Key for Body Text
  5. 05Responsive Tailwind Kbd Sizing with Em Units
  6. 06Tailwind Mac Cmd vs Windows Ctrl Shortcut Toggle
  7. 07Tailwind Arrow Keys and Navigation Key Layout
  8. 08Auto-Detect OS Keyboard Shortcuts (Cmd or Ctrl) in Tailwind
  9. 09Tailwind Keyboard Layout with Function Keys and Space Bar
  10. 10Tailwind Icon Keycaps with Inline SVG
  11. 11Tailwind Search Input with Cmd+K Shortcut Hint
  12. 12Tailwind Keyboard Shortcuts Cheat Sheet Grid
  13. 13Tailwind Tooltip with Keyboard Shortcut Hint
  14. 14Tailwind Keyboard Shortcut Settings Table
  15. 15Live Key Press Visualizer with Tailwind CSS
  16. 16Neumorphic Keycap Design in Tailwind CSS
  17. 17Glassmorphism Keyboard Keys in Tailwind CSS
  18. 18Retro Typewriter Round Keys in Tailwind CSS
  19. 19Terminal-Style Monospace Kbd Keys in Tailwind
  20. 20Dark Mode Kbd Keys with Tailwind CSS Variables
Tailwind v4MIT licensed

Terminal-Style Monospace Kbd Keys in Tailwind

CLI help output rendered as a terminal window: monospace caps for Ctrl + C, Ctrl + R and friends, a <dl> of key → effect, comment-style descriptions and a blinking block caret driven by an @theme animation token (--animate-kbd19-blink). Light mode becomes a warm paper terminal; dark mode is classic green-on-black.

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The code

<section class="kbd-19 relative w-full min-h-svh scheme-light kbd19-dark:scheme-dark bg-kbd19-bg text-kbd19-ink font-kbd19-mono" aria-label="Terminal monospace kbd key demo">
  <div class="grid min-h-svh place-items-center px-5 pt-20 pb-12">
      <section class="w-full min-w-0 max-w-[40rem] overflow-hidden rounded-xl border border-kbd19-rim bg-kbd19-term shadow-[0_30px_60px_-30px_var(--color-kbd19-shade)]">
        <div class="flex items-center gap-2 border-b border-kbd19-rim bg-kbd19-bar px-4 py-3">
          <span aria-hidden="true" class="flex gap-1.5"><span class="size-3 rounded-full bg-[#ff5f57]"></span><span class="size-3 rounded-full bg-[#febc2e]"></span><span class="size-3 rounded-full bg-[#28c840]"></span></span>
          <span class="ml-2 text-[12px] text-kbd19-mut">priya@atlas: ~/project</span>
        </div>
        <div class="p-5 text-[13.5px] leading-relaxed sm:p-6">
          <p><span class="text-kbd19-acc">$</span> atlas --help keys</p>
          <dl class="mt-3">
          <div class="grid gap-1 py-1.5 sm:grid-cols-[8.5rem_minmax(0,1fr)] sm:gap-4"><dt><kbd class="inline-flex items-center gap-1"><kbd class="inline-flex h-6 min-w-6 items-center justify-center rounded-[4px] border border-kbd19-rim bg-kbd19-cap px-1.5 text-[12px] font-semibold leading-none text-kbd19-capink shadow-[0_2px_0_var(--color-kbd19-edge)]">Ctrl</kbd><span class="text-[11px] text-kbd19-mut" aria-hidden="true">+</span><kbd class="inline-flex h-6 min-w-6 items-center justify-center rounded-[4px] border border-kbd19-rim bg-kbd19-cap px-1.5 text-[12px] font-semibold leading-none text-kbd19-capink shadow-[0_2px_0_var(--color-kbd19-edge)]">C</kbd></kbd></dt><dd class="min-w-0 text-kbd19-ink"><span aria-hidden="true" class="text-kbd19-mut"># </span>send SIGINT to the foreground job</dd></div>
          <div class="grid gap-1 py-1.5 sm:grid-cols-[8.5rem_minmax(0,1fr)] sm:gap-4"><dt><kbd class="inline-flex items-center gap-1"><kbd class="inline-flex h-6 min-w-6 items-center justify-center rounded-[4px] border border-kbd19-rim bg-kbd19-cap px-1.5 text-[12px] font-semibold leading-none text-kbd19-capink shadow-[0_2px_0_var(--color-kbd19-edge)]">Ctrl</kbd><span class="text-[11px] text-kbd19-mut" aria-hidden="true">+</span><kbd class="inline-flex h-6 min-w-6 items-center justify-center rounded-[4px] border border-kbd19-rim bg-kbd19-cap px-1.5 text-[12px] font-semibold leading-none text-kbd19-capink shadow-[0_2px_0_var(--color-kbd19-edge)]">D</kbd></kbd></dt><dd class="min-w-0 text-kbd19-ink"><span aria-hidden="true" class="text-kbd19-mut"># </span>end of input, close the session</dd></div>
          <div class="grid gap-1 py-1.5 sm:grid-cols-[8.5rem_minmax(0,1fr)] sm:gap-4"><dt><kbd class="inline-flex items-center gap-1"><kbd class="inline-flex h-6 min-w-6 items-center justify-center rounded-[4px] border border-kbd19-rim bg-kbd19-cap px-1.5 text-[12px] font-semibold leading-none text-kbd19-capink shadow-[0_2px_0_var(--color-kbd19-edge)]">Ctrl</kbd><span class="text-[11px] text-kbd19-mut" aria-hidden="true">+</span><kbd class="inline-flex h-6 min-w-6 items-center justify-center rounded-[4px] border border-kbd19-rim bg-kbd19-cap px-1.5 text-[12px] font-semibold leading-none text-kbd19-capink shadow-[0_2px_0_var(--color-kbd19-edge)]">R</kbd></kbd></dt><dd class="min-w-0 text-kbd19-ink"><span aria-hidden="true" class="text-kbd19-mut"># </span>reverse search through history</dd></div>
          <div class="grid gap-1 py-1.5 sm:grid-cols-[8.5rem_minmax(0,1fr)] sm:gap-4"><dt><kbd class="inline-flex items-center gap-1"><kbd class="inline-flex h-6 min-w-6 items-center justify-center rounded-[4px] border border-kbd19-rim bg-kbd19-cap px-1.5 text-[12px] font-semibold leading-none text-kbd19-capink shadow-[0_2px_0_var(--color-kbd19-edge)]">Ctrl</kbd><span class="text-[11px] text-kbd19-mut" aria-hidden="true">+</span><kbd class="inline-flex h-6 min-w-6 items-center justify-center rounded-[4px] border border-kbd19-rim bg-kbd19-cap px-1.5 text-[12px] font-semibold leading-none text-kbd19-capink shadow-[0_2px_0_var(--color-kbd19-edge)]">L</kbd></kbd></dt><dd class="min-w-0 text-kbd19-ink"><span aria-hidden="true" class="text-kbd19-mut"># </span>clear the screen, keep the buffer</dd></div>
          <div class="grid gap-1 py-1.5 sm:grid-cols-[8.5rem_minmax(0,1fr)] sm:gap-4"><dt><kbd class="inline-flex items-center gap-1"><kbd class="inline-flex h-6 min-w-6 items-center justify-center rounded-[4px] border border-kbd19-rim bg-kbd19-cap px-1.5 text-[12px] font-semibold leading-none text-kbd19-capink shadow-[0_2px_0_var(--color-kbd19-edge)]">Ctrl</kbd><span class="text-[11px] text-kbd19-mut" aria-hidden="true">+</span><kbd class="inline-flex h-6 min-w-6 items-center justify-center rounded-[4px] border border-kbd19-rim bg-kbd19-cap px-1.5 text-[12px] font-semibold leading-none text-kbd19-capink shadow-[0_2px_0_var(--color-kbd19-edge)]">Z</kbd></kbd></dt><dd class="min-w-0 text-kbd19-ink"><span aria-hidden="true" class="text-kbd19-mut"># </span>suspend, resume with <span class="text-kbd19-acc">fg</span></dd></div>
          <div class="grid gap-1 py-1.5 sm:grid-cols-[8.5rem_minmax(0,1fr)] sm:gap-4"><dt><kbd class="inline-flex items-center gap-1.5"><kbd class="inline-flex h-6 min-w-6 items-center justify-center rounded-[4px] border border-kbd19-rim bg-kbd19-cap px-1.5 text-[12px] font-semibold leading-none text-kbd19-capink shadow-[0_2px_0_var(--color-kbd19-edge)]">Tab</kbd><span class="rounded bg-kbd19-chip px-1.5 py-0.5 text-[11px] font-semibold text-kbd19-acc"><span aria-hidden="true">×2</span><span class="sr-only">twice</span></span></kbd></dt><dd class="min-w-0 text-kbd19-ink"><span aria-hidden="true" class="text-kbd19-mut"># </span>list every completion candidate</dd></div>
          </dl>
          <p class="mt-3 flex items-center gap-2"><span class="text-kbd19-acc">$</span><span aria-hidden="true" class="inline-block h-[1.15em] w-[0.6em] bg-kbd19-acc animate-kbd19-blink motion-reduce:animate-none"></span></p>
        </div>
      </section>
  </div>
  <div class="absolute top-3.5 right-4 z-10">
    <input id="kbd-19-theme" type="checkbox" class="peer sr-only">
    <label for="kbd-19-theme" class="inline-flex min-h-11 cursor-pointer select-none items-center gap-2.5 rounded-full border border-current/55 px-4 font-sans text-[11px] font-bold uppercase leading-none tracking-[0.16em] text-kbd19-ink transition-colors hover:border-current peer-focus-visible:outline-3 peer-focus-visible:outline-offset-2 peer-focus-visible:outline-kbd19-acc">
      <span aria-hidden="true" class="size-3 flex-none rounded-full bg-current transition-[background-color,box-shadow] duration-300 kbd19-dark:bg-transparent kbd19-dark:shadow-[inset_-4px_-2px_0_0_currentColor] motion-reduce:transition-none"></span>
      <span class="kbd19-dark:hidden">Light</span><span class="hidden kbd19-dark:inline">Dark</span><span class="sr-only"> theme</span>
    </label>
  </div>
</section>
@import "tailwindcss";
/* Theme state: follows the OS; the corner switch flips it for THIS demo only. */

@custom-variant kbd19-dark {
  @media (prefers-color-scheme: dark) {
    &:where(.kbd-19:not(:has(#kbd-19-theme:checked)), .kbd-19:not(:has(#kbd-19-theme:checked)) *) {
      @slot;
    }
  }

  @media (prefers-color-scheme: light) {
    &:where(.kbd-19:has(#kbd-19-theme:checked), .kbd-19:has(#kbd-19-theme:checked) *) {
      @slot;
    }
  }
}
/* Every colour is light-dark(day, night): the root's scheme-light / scheme-dark utility picks the side. */

@theme {
  --color-kbd19-bg: light-dark(#e7e2d4, #050607);
  --color-kbd19-bg: light-dark(oklch(0.913 0.02 90.6), oklch(0.121 0.004 245.5));
  --color-kbd19-term: light-dark(#fbf6e7, #0b0f0c);
  --color-kbd19-term: light-dark(oklch(0.973 0.02 91.6), oklch(0.163 0.009 152.9));
  --color-kbd19-bar: light-dark(#efe8d4, #121814);
  --color-kbd19-bar: light-dark(oklch(0.931 0.028 90.9), oklch(0.201 0.012 156));
  --color-kbd19-shade: light-dark(#3a2f1a59, #000000cc);
  --color-kbd19-shade: light-dark(oklch(0.312 0.037 82.7 / 0.35), oklch(0 0 0 / 0.8));
  --color-kbd19-ink: light-dark(#33372f, #cfe8d3);
  --color-kbd19-ink: light-dark(oklch(0.33 0.015 129), oklch(0.907 0.039 150));
  --color-kbd19-mut: light-dark(#5d6157, #7f9884);
  --color-kbd19-mut: light-dark(oklch(0.486 0.016 124.8), oklch(0.654 0.041 151));
  --color-kbd19-rim: light-dark(#d4cbb2, #1f2b22);
  --color-kbd19-rim: light-dark(oklch(0.843 0.035 90.5), oklch(0.275 0.023 152.3));
  --color-kbd19-chip: light-dark(#ece4cc, #13261a);
  --color-kbd19-chip: light-dark(oklch(0.919 0.033 91.7), oklch(0.248 0.034 155.3));
  --color-kbd19-cap: light-dark(#efe8d4, #14201a);
  --color-kbd19-cap: light-dark(oklch(0.931 0.028 90.9), oklch(0.23 0.021 162.5));
  --color-kbd19-edge: light-dark(#bfb596, #010302);
  --color-kbd19-edge: light-dark(oklch(0.773 0.044 92.3), oklch(0.09 0.011 165.3));
  --color-kbd19-capink: light-dark(#24271f, #e4f5e7);
  --color-kbd19-capink: light-dark(oklch(0.267 0.015 124.2), oklch(0.954 0.026 150.8));
  --color-kbd19-acc: light-dark(#2f7d32, #4ade80);
  --color-kbd19-acc: light-dark(oklch(0.524 0.134 144), oklch(0.8 0.182 151.7));
  --font-kbd19-mono: 'JetBrains Mono', ui-monospace, monospace;
  --animate-kbd19-blink: kbd19-blink 1.1s steps(1) infinite;

  @keyframes kbd19-blink {
    50% {
      opacity: 0;
    }
  }
}
/* Root rule: the full-bleed contract, stated in CSS as well as utilities so the stage is sized before the browser build compiles. */

.kbd-19 {
  width: 100%;
  min-height: 100svh;
  position: relative;
}

Setup — do this once per project

Skip this if your project already runs Tailwind v4.

1Load Tailwind
<script src="https://cdn.jsdelivr.net/npm/@tailwindcss/browser@4"></script>

Compiles in the browser — perfect for a CodePen or a quick test, not for production.

2Add the stylesheetRequiredthe @theme block is what makes the custom utilities exist
@import "tailwindcss";
/* Theme state: follows the OS; the corner switch flips it for THIS demo only. */

@custom-variant kbd19-dark {
  @media (prefers-color-scheme: dark) {
    &:where(.kbd-19:not(:has(#kbd-19-theme:checked)), .kbd-19:not(:has(#kbd-19-theme:checked)) *) {
      @slot;
    }
  }

  @media (prefers-color-scheme: light) {
    &:where(.kbd-19:has(#kbd-19-theme:checked), .kbd-19:has(#kbd-19-theme:checked) *) {
      @slot;
    }
  }
}
/* Every colour is light-dark(day, night): the root's scheme-light / scheme-dark utility picks the side. */

@theme {
  --color-kbd19-bg: light-dark(#e7e2d4, #050607);
  --color-kbd19-bg: light-dark(oklch(0.913 0.02 90.6), oklch(0.121 0.004 245.5));
  --color-kbd19-term: light-dark(#fbf6e7, #0b0f0c);
  --color-kbd19-term: light-dark(oklch(0.973 0.02 91.6), oklch(0.163 0.009 152.9));
  --color-kbd19-bar: light-dark(#efe8d4, #121814);
  --color-kbd19-bar: light-dark(oklch(0.931 0.028 90.9), oklch(0.201 0.012 156));
  --color-kbd19-shade: light-dark(#3a2f1a59, #000000cc);
  --color-kbd19-shade: light-dark(oklch(0.312 0.037 82.7 / 0.35), oklch(0 0 0 / 0.8));
  --color-kbd19-ink: light-dark(#33372f, #cfe8d3);
  --color-kbd19-ink: light-dark(oklch(0.33 0.015 129), oklch(0.907 0.039 150));
  --color-kbd19-mut: light-dark(#5d6157, #7f9884);
  --color-kbd19-mut: light-dark(oklch(0.486 0.016 124.8), oklch(0.654 0.041 151));
  --color-kbd19-rim: light-dark(#d4cbb2, #1f2b22);
  --color-kbd19-rim: light-dark(oklch(0.843 0.035 90.5), oklch(0.275 0.023 152.3));
  --color-kbd19-chip: light-dark(#ece4cc, #13261a);
  --color-kbd19-chip: light-dark(oklch(0.919 0.033 91.7), oklch(0.248 0.034 155.3));
  --color-kbd19-cap: light-dark(#efe8d4, #14201a);
  --color-kbd19-cap: light-dark(oklch(0.931 0.028 90.9), oklch(0.23 0.021 162.5));
  --color-kbd19-edge: light-dark(#bfb596, #010302);
  --color-kbd19-edge: light-dark(oklch(0.773 0.044 92.3), oklch(0.09 0.011 165.3));
  --color-kbd19-capink: light-dark(#24271f, #e4f5e7);
  --color-kbd19-capink: light-dark(oklch(0.267 0.015 124.2), oklch(0.954 0.026 150.8));
  --color-kbd19-acc: light-dark(#2f7d32, #4ade80);
  --color-kbd19-acc: light-dark(oklch(0.524 0.134 144), oklch(0.8 0.182 151.7));
  --font-kbd19-mono: 'JetBrains Mono', ui-monospace, monospace;
  --animate-kbd19-blink: kbd19-blink 1.1s steps(1) infinite;

  @keyframes kbd19-blink {
    50% {
      opacity: 0;
    }
  }
}
/* Root rule: the full-bleed contract, stated in CSS as well as utilities so the stage is sized before the browser build compiles. */

.kbd-19 {
  width: 100%;
  min-height: 100svh;
  position: relative;
}
3Fonts used by this demooptional — skip if you have your own type stack
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600;700&display=swap">

What changed in the port

Which parts became utilities, which stayed CSS, and why.

  • The caret's @keyframes moved inside @theme next to an --animate-* token, which is how v4 mints animate-kbd19-blink.
  • .kbd-19__sep--x2 became a pill with aria-hidden “×2” and sr-only “twice”, so it is no longer read as “x two”.
  • UI upgrade: a full terminal window (title bar, host prompt) frames the help output, and descriptions read as # comments.
  • UI upgrade: a warm paper-terminal light theme replaces the inverted dark-only palette, and the caret respects prefers-reduced-motion.
Paste this into ChatGPT, Claude, Cursor, or any coding assistant. The block below is pre-framed with everything the AI needs to integrate this demo into your project — markup, styles, scoping notes, and the source URL. Hit Copy and paste straight into your chat.
Here's a working CSS demo from CodeFronts. Use it as-is or adapt to your framework. All classes are scoped under a unique prefix so the code won't collide with your existing styles. MIT licensed.
Demo: Terminal-Style Monospace Kbd Keys in Tailwind
Source: https://codefronts.com/snippets/tailwind-css-kbd-keys/terminal-style-monospace-kbd-keys-tailwind/

CLI help output rendered as a terminal window: monospace caps for Ctrl + C, Ctrl + R and friends, a <dl> of key → effect, comment-style descriptions and a blinking block caret driven by an @theme animation token (--animate-kbd19-blink). Light mode becomes a warm paper terminal; dark mode is classic green-on-black.
## HTML
```html
<section class="kbd-19 relative w-full min-h-svh scheme-light kbd19-dark:scheme-dark bg-kbd19-bg text-kbd19-ink font-kbd19-mono" aria-label="Terminal monospace kbd key demo">
  <div class="grid min-h-svh place-items-center px-5 pt-20 pb-12">
      <section class="w-full min-w-0 max-w-[40rem] overflow-hidden rounded-xl border border-kbd19-rim bg-kbd19-term shadow-[0_30px_60px_-30px_var(--color-kbd19-shade)]">
        <div class="flex items-center gap-2 border-b border-kbd19-rim bg-kbd19-bar px-4 py-3">
          <span aria-hidden="true" class="flex gap-1.5"><span class="size-3 rounded-full bg-[#ff5f57]"></span><span class="size-3 rounded-full bg-[#febc2e]"></span><span class="size-3 rounded-full bg-[#28c840]"></span></span>
          <span class="ml-2 text-[12px] text-kbd19-mut">priya@atlas: ~/project</span>
        </div>
        <div class="p-5 text-[13.5px] leading-relaxed sm:p-6">
          <p><span class="text-kbd19-acc">$</span> atlas --help keys</p>
          <dl class="mt-3">
          <div class="grid gap-1 py-1.5 sm:grid-cols-[8.5rem_minmax(0,1fr)] sm:gap-4"><dt><kbd class="inline-flex items-center gap-1"><kbd class="inline-flex h-6 min-w-6 items-center justify-center rounded-[4px] border border-kbd19-rim bg-kbd19-cap px-1.5 text-[12px] font-semibold leading-none text-kbd19-capink shadow-[0_2px_0_var(--color-kbd19-edge)]">Ctrl</kbd><span class="text-[11px] text-kbd19-mut" aria-hidden="true">+</span><kbd class="inline-flex h-6 min-w-6 items-center justify-center rounded-[4px] border border-kbd19-rim bg-kbd19-cap px-1.5 text-[12px] font-semibold leading-none text-kbd19-capink shadow-[0_2px_0_var(--color-kbd19-edge)]">C</kbd></kbd></dt><dd class="min-w-0 text-kbd19-ink"><span aria-hidden="true" class="text-kbd19-mut"># </span>send SIGINT to the foreground job</dd></div>
          <div class="grid gap-1 py-1.5 sm:grid-cols-[8.5rem_minmax(0,1fr)] sm:gap-4"><dt><kbd class="inline-flex items-center gap-1"><kbd class="inline-flex h-6 min-w-6 items-center justify-center rounded-[4px] border border-kbd19-rim bg-kbd19-cap px-1.5 text-[12px] font-semibold leading-none text-kbd19-capink shadow-[0_2px_0_var(--color-kbd19-edge)]">Ctrl</kbd><span class="text-[11px] text-kbd19-mut" aria-hidden="true">+</span><kbd class="inline-flex h-6 min-w-6 items-center justify-center rounded-[4px] border border-kbd19-rim bg-kbd19-cap px-1.5 text-[12px] font-semibold leading-none text-kbd19-capink shadow-[0_2px_0_var(--color-kbd19-edge)]">D</kbd></kbd></dt><dd class="min-w-0 text-kbd19-ink"><span aria-hidden="true" class="text-kbd19-mut"># </span>end of input, close the session</dd></div>
          <div class="grid gap-1 py-1.5 sm:grid-cols-[8.5rem_minmax(0,1fr)] sm:gap-4"><dt><kbd class="inline-flex items-center gap-1"><kbd class="inline-flex h-6 min-w-6 items-center justify-center rounded-[4px] border border-kbd19-rim bg-kbd19-cap px-1.5 text-[12px] font-semibold leading-none text-kbd19-capink shadow-[0_2px_0_var(--color-kbd19-edge)]">Ctrl</kbd><span class="text-[11px] text-kbd19-mut" aria-hidden="true">+</span><kbd class="inline-flex h-6 min-w-6 items-center justify-center rounded-[4px] border border-kbd19-rim bg-kbd19-cap px-1.5 text-[12px] font-semibold leading-none text-kbd19-capink shadow-[0_2px_0_var(--color-kbd19-edge)]">R</kbd></kbd></dt><dd class="min-w-0 text-kbd19-ink"><span aria-hidden="true" class="text-kbd19-mut"># </span>reverse search through history</dd></div>
          <div class="grid gap-1 py-1.5 sm:grid-cols-[8.5rem_minmax(0,1fr)] sm:gap-4"><dt><kbd class="inline-flex items-center gap-1"><kbd class="inline-flex h-6 min-w-6 items-center justify-center rounded-[4px] border border-kbd19-rim bg-kbd19-cap px-1.5 text-[12px] font-semibold leading-none text-kbd19-capink shadow-[0_2px_0_var(--color-kbd19-edge)]">Ctrl</kbd><span class="text-[11px] text-kbd19-mut" aria-hidden="true">+</span><kbd class="inline-flex h-6 min-w-6 items-center justify-center rounded-[4px] border border-kbd19-rim bg-kbd19-cap px-1.5 text-[12px] font-semibold leading-none text-kbd19-capink shadow-[0_2px_0_var(--color-kbd19-edge)]">L</kbd></kbd></dt><dd class="min-w-0 text-kbd19-ink"><span aria-hidden="true" class="text-kbd19-mut"># </span>clear the screen, keep the buffer</dd></div>
          <div class="grid gap-1 py-1.5 sm:grid-cols-[8.5rem_minmax(0,1fr)] sm:gap-4"><dt><kbd class="inline-flex items-center gap-1"><kbd class="inline-flex h-6 min-w-6 items-center justify-center rounded-[4px] border border-kbd19-rim bg-kbd19-cap px-1.5 text-[12px] font-semibold leading-none text-kbd19-capink shadow-[0_2px_0_var(--color-kbd19-edge)]">Ctrl</kbd><span class="text-[11px] text-kbd19-mut" aria-hidden="true">+</span><kbd class="inline-flex h-6 min-w-6 items-center justify-center rounded-[4px] border border-kbd19-rim bg-kbd19-cap px-1.5 text-[12px] font-semibold leading-none text-kbd19-capink shadow-[0_2px_0_var(--color-kbd19-edge)]">Z</kbd></kbd></dt><dd class="min-w-0 text-kbd19-ink"><span aria-hidden="true" class="text-kbd19-mut"># </span>suspend, resume with <span class="text-kbd19-acc">fg</span></dd></div>
          <div class="grid gap-1 py-1.5 sm:grid-cols-[8.5rem_minmax(0,1fr)] sm:gap-4"><dt><kbd class="inline-flex items-center gap-1.5"><kbd class="inline-flex h-6 min-w-6 items-center justify-center rounded-[4px] border border-kbd19-rim bg-kbd19-cap px-1.5 text-[12px] font-semibold leading-none text-kbd19-capink shadow-[0_2px_0_var(--color-kbd19-edge)]">Tab</kbd><span class="rounded bg-kbd19-chip px-1.5 py-0.5 text-[11px] font-semibold text-kbd19-acc"><span aria-hidden="true">×2</span><span class="sr-only">twice</span></span></kbd></dt><dd class="min-w-0 text-kbd19-ink"><span aria-hidden="true" class="text-kbd19-mut"># </span>list every completion candidate</dd></div>
          </dl>
          <p class="mt-3 flex items-center gap-2"><span class="text-kbd19-acc">$</span><span aria-hidden="true" class="inline-block h-[1.15em] w-[0.6em] bg-kbd19-acc animate-kbd19-blink motion-reduce:animate-none"></span></p>
        </div>
      </section>
  </div>
  <div class="absolute top-3.5 right-4 z-10">
    <input id="kbd-19-theme" type="checkbox" class="peer sr-only">
    <label for="kbd-19-theme" class="inline-flex min-h-11 cursor-pointer select-none items-center gap-2.5 rounded-full border border-current/55 px-4 font-sans text-[11px] font-bold uppercase leading-none tracking-[0.16em] text-kbd19-ink transition-colors hover:border-current peer-focus-visible:outline-3 peer-focus-visible:outline-offset-2 peer-focus-visible:outline-kbd19-acc">
      <span aria-hidden="true" class="size-3 flex-none rounded-full bg-current transition-[background-color,box-shadow] duration-300 kbd19-dark:bg-transparent kbd19-dark:shadow-[inset_-4px_-2px_0_0_currentColor] motion-reduce:transition-none"></span>
      <span class="kbd19-dark:hidden">Light</span><span class="hidden kbd19-dark:inline">Dark</span><span class="sr-only"> theme</span>
    </label>
  </div>
</section>
```
## CSS
```css
@import "tailwindcss";
/* Theme state: follows the OS; the corner switch flips it for THIS demo only. */

@custom-variant kbd19-dark {
  @media (prefers-color-scheme: dark) {
    &:where(.kbd-19:not(:has(#kbd-19-theme:checked)), .kbd-19:not(:has(#kbd-19-theme:checked)) *) {
      @slot;
    }
  }

  @media (prefers-color-scheme: light) {
    &:where(.kbd-19:has(#kbd-19-theme:checked), .kbd-19:has(#kbd-19-theme:checked) *) {
      @slot;
    }
  }
}
/* Every colour is light-dark(day, night): the root's scheme-light / scheme-dark utility picks the side. */

@theme {
  --color-kbd19-bg: light-dark(#e7e2d4, #050607);
  --color-kbd19-bg: light-dark(oklch(0.913 0.02 90.6), oklch(0.121 0.004 245.5));
  --color-kbd19-term: light-dark(#fbf6e7, #0b0f0c);
  --color-kbd19-term: light-dark(oklch(0.973 0.02 91.6), oklch(0.163 0.009 152.9));
  --color-kbd19-bar: light-dark(#efe8d4, #121814);
  --color-kbd19-bar: light-dark(oklch(0.931 0.028 90.9), oklch(0.201 0.012 156));
  --color-kbd19-shade: light-dark(#3a2f1a59, #000000cc);
  --color-kbd19-shade: light-dark(oklch(0.312 0.037 82.7 / 0.35), oklch(0 0 0 / 0.8));
  --color-kbd19-ink: light-dark(#33372f, #cfe8d3);
  --color-kbd19-ink: light-dark(oklch(0.33 0.015 129), oklch(0.907 0.039 150));
  --color-kbd19-mut: light-dark(#5d6157, #7f9884);
  --color-kbd19-mut: light-dark(oklch(0.486 0.016 124.8), oklch(0.654 0.041 151));
  --color-kbd19-rim: light-dark(#d4cbb2, #1f2b22);
  --color-kbd19-rim: light-dark(oklch(0.843 0.035 90.5), oklch(0.275 0.023 152.3));
  --color-kbd19-chip: light-dark(#ece4cc, #13261a);
  --color-kbd19-chip: light-dark(oklch(0.919 0.033 91.7), oklch(0.248 0.034 155.3));
  --color-kbd19-cap: light-dark(#efe8d4, #14201a);
  --color-kbd19-cap: light-dark(oklch(0.931 0.028 90.9), oklch(0.23 0.021 162.5));
  --color-kbd19-edge: light-dark(#bfb596, #010302);
  --color-kbd19-edge: light-dark(oklch(0.773 0.044 92.3), oklch(0.09 0.011 165.3));
  --color-kbd19-capink: light-dark(#24271f, #e4f5e7);
  --color-kbd19-capink: light-dark(oklch(0.267 0.015 124.2), oklch(0.954 0.026 150.8));
  --color-kbd19-acc: light-dark(#2f7d32, #4ade80);
  --color-kbd19-acc: light-dark(oklch(0.524 0.134 144), oklch(0.8 0.182 151.7));
  --font-kbd19-mono: 'JetBrains Mono', ui-monospace, monospace;
  --animate-kbd19-blink: kbd19-blink 1.1s steps(1) infinite;

  @keyframes kbd19-blink {
    50% {
      opacity: 0;
    }
  }
}
/* Root rule: the full-bleed contract, stated in CSS as well as utilities so the stage is sized before the browser build compiles. */

.kbd-19 {
  width: 100%;
  min-height: 100svh;
  position: relative;
}
```

How this works

Animations are tokens in v4. Declaring the animation and its keyframes in @theme creates the utility, and the keyframes are emitted only because a class uses it:

@theme {
  --animate-kbd19-blink: kbd19-blink 1.1s steps(1) infinite;
  @keyframes kbd19-blink { 50% { opacity: 0; } }
}

steps(1) makes the caret snap on and off like a real terminal rather than fading.

Make it yours

  • Amber phosphor: set the acc token to an amber pair.
  • Block vs bar caret: w-[0.6em] vs w-0.5.
  • Add a typed command: wrap text in animate-[typing_…] with steps() width.

Gotchas — read before shipping

  • Decorative traffic-light dots are aria-hidden; they are not controls.
  • Keep descriptions in the <dd>, not in the key, so the term is just the shortcut.
  • Monospace fonts make Ctrl wider than in sans — size caps by content, not fixed width.

Browser support

ChromeSafariFirefoxEdge
123+17.5+128+123+

Tailwind v4's own sheet needs Chrome 111 / Safari 16.4 / Firefox 128 (cascade layers, @property, color-mix()); the light-dark() theme tokens raise the floor to Chrome 123 / Safari 17.5.

Techniques used in this demo

Utilitiesfirst-class utility or variant

prefers-reduced-motiontw ↗gridtw ↗

Plain CSSno Tailwind surface

@keyframestw ↗

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