# Classic Theme Toggle

> An animated classic sun-and-moon theme toggle.

A shadcn/ui block from the [@toggles](https://toggles.dev) registry, listed on [shadcn.exchange](https://shadcn.exchange/r/toggles/classic).

- Page, with a live preview: https://shadcn.exchange/r/toggles/classic
- Screenshot: https://abzjhwgwpdpz7ua5.public.blob.vercel-storage.com/shots/toggles/classic-light-5145c9d8f3ae49e2.png
- Registry item: https://toggles.dev/r/classic.json
- Listed: 2026-10-13, source last changed 2026-10-13

## Install

```bash
npx shadcn@latest add https://toggles.dev/r/classic.json
```

Run it in a project that has shadcn/ui set up. It adds the files below and installs what they depend on.

## Files

### `src/Classic.tsx`

```tsx
import { type ButtonHTMLAttributes, type CSSProperties, useId } from "react";

export interface ClassicProps extends Omit<
  ButtonHTMLAttributes<HTMLButtonElement>,
  "children"
> {
  duration?: number;
  /** Whether the toggle should render in its dark-theme state. */
  toggled?: boolean;
  [key: `data-${string}`]: string | number | boolean | null | undefined;
}

export function Classic({
  duration = 400,
  toggled,
  className,
  type = "button",
  title = "Toggle theme",
  "aria-label": ariaLabel = "Toggle theme",
  "aria-pressed": ariaPressed,
  ...props
}: ClassicProps) {
  const toggleId = useId();

  const clipMainId = `toggles.dev-classic-main-${toggleId}`;

  return (
    <button
      {...props}
      type={type}
      title={title}
      aria-label={ariaLabel}
      aria-pressed={toggled ?? ariaPressed}
      className={[
        className,
        toggled === true ? "dark" : toggled === false ? "light" : undefined,
      ]
        .filter(Boolean)
        .join(" ")}
    >
      <svg
        width="1em"
        height="1em"
        viewBox="0 0 24 24"
        aria-hidden="true"
        style={
          { "--toggles-dot-dev--duration": `${duration}ms` } as CSSProperties
        }
      >
        <defs>
          <clipPath id={clipMainId}>
            <path
              d={"M0 0h25a1 1 0 0010 10v14H0Z"}
              className="motion-safe:transition-[d,translate] motion-safe:duration-(--toggles-dot-dev--duration) motion-safe:dark:delay-[calc(var(--toggles-dot-dev--duration)*0.15)] dark:[d:path('M0_2h13a1_1_0_0010_10v14H0Z')] dark:not-supports-[d:path('M0_0')]:-translate-x-3.25 dark:not-supports-[d:path('M0_0')]:translate-y-0.5"
            />
          </clipPath>
        </defs>
        <g stroke={"currentColor"} strokeLinecap={"round"}>
          <circle
            cx={12}
            cy={12}
            r={5}
            fill={"currentColor"}
            clipPath={`url(#${clipMainId})`}
            className="origin-center motion-safe:transition-transform motion-safe:duration-(--toggles-dot-dev--duration) dark:scale-170"
          />
          <path
            d={"M12 1.4v2.4"}
            fill={"none"}
            strokeWidth={2}
            strokeLinejoin={"round"}
            strokeMiterlimit={0}
            paintOrder={"stroke markers fill"}
            className="[transform-box:view-box] [transform-origin:center] motion-safe:[transition:transform_var(--toggles-dot-dev--duration),opacity_var(--toggles-dot-dev--duration)] motion-safe:delay-[calc(var(--toggles-dot-dev--duration)*0.15)] motion-safe:dark:delay-0 dark:[transform:scale(0)] dark:opacity-0"
          />
          <path
            d={"m20.3 3.7-2.5 2.5"}
            fill={"none"}
            strokeWidth={2}
            strokeLinejoin={"round"}
            strokeMiterlimit={0}
            paintOrder={"stroke markers fill"}
            className="[transform-box:view-box] [transform-origin:center] motion-safe:[transition:transform_var(--toggles-dot-dev--duration),opacity_var(--toggles-dot-dev--duration)] motion-safe:delay-[calc(var(--toggles-dot-dev--duration)*0.15)] motion-safe:dark:delay-0 dark:[transform:scale(0)] dark:opacity-0"
          />
          <path
            d={"M22.6 12h-2.4"}
            fill={"none"}
            strokeWidth={2}
            strokeLinejoin={"round"}
            strokeMiterlimit={0}
            paintOrder={"stroke markers fill"}
            className="[transform-box:view-box] [transform-origin:center] motion-safe:[transition:transform_var(--toggles-dot-dev--duration),opacity_var(--toggles-dot-dev--duration)] motion-safe:delay-[calc(var(--toggles-dot-dev--duration)*0.15)] motion-safe:dark:delay-0 dark:[transform:scale(0)] dark:opacity-0"
          />
          <path
            d={"M12 22.6v-2.4"}
            fill={"none"}
            strokeWidth={2}
            strokeLinejoin={"round"}
            strokeMiterlimit={0}
            paintOrder={"stroke markers fill"}
            className="[transform-box:view-box] [transform-origin:center] motion-safe:[transition:transform_var(--toggles-dot-dev--duration),opacity_var(--toggles-dot-dev--duration)] motion-safe:delay-[calc(var(--toggles-dot-dev--duration)*0.15)] motion-safe:dark:delay-0 dark:[transform:scale(0)] dark:opacity-0"
          />
          <path
            d={"M1.4 12h2.4"}
            fill={"none"}
            strokeWidth={2}
            strokeLinejoin={"round"}
            strokeMiterlimit={0}
            paintOrder={"stroke markers fill"}
            className="[transform-box:view-box] [transform-origin:center] motion-safe:[transition:transform_var(--toggles-dot-dev--duration),opacity_var(--toggles-dot-dev--duration)] motion-safe:delay-[calc(var(--toggles-dot-dev--duration)*0.15)] motion-safe:dark:delay-0 dark:[transform:scale(0)] dark:opacity-0"
          />
          <path
            d={"m20.3 20.3-2.5-2.5"}
            fill={"none"}
            strokeWidth={2}
            strokeLinejoin={"round"}
            strokeMiterlimit={0}
            paintOrder={"stroke markers fill"}
            className="[transform-box:view-box] [transform-origin:center] motion-safe:[transition:transform_var(--toggles-dot-dev--duration),opacity_var(--toggles-dot-dev--duration)] motion-safe:delay-[calc(var(--toggles-dot-dev--duration)*0.15)] motion-safe:dark:delay-0 dark:[transform:scale(0)] dark:opacity-0"
          />
          <path
            d={"m3.7 20.3 2.5-2.5"}
            fill={"none"}
            strokeWidth={2}
            strokeLinejoin={"round"}
            strokeMiterlimit={0}
            paintOrder={"stroke markers fill"}
            className="[transform-box:view-box] [transform-origin:center] motion-safe:[transition:transform_var(--toggles-dot-dev--duration),opacity_var(--toggles-dot-dev--duration)] motion-safe:delay-[calc(var(--toggles-dot-dev--duration)*0.15)] motion-safe:dark:delay-0 dark:[transform:scale(0)] dark:opacity-0"
          />
          <path
            d={"m3.7 3.7 2.5 2.5"}
            fill={"none"}
            strokeWidth={2}
            strokeLinejoin={"round"}
            strokeMiterlimit={0}
            paintOrder={"stroke markers fill"}
            className="[transform-box:view-box] [transform-origin:center] motion-safe:[transition:transform_var(--toggles-dot-dev--duration),opacity_var(--toggles-dot-dev--duration)] motion-safe:delay-[calc(var(--toggles-dot-dev--duration)*0.15)] motion-safe:dark:delay-0 dark:[transform:scale(0)] dark:opacity-0"
          />
        </g>
      </svg>
    </button>
  );
}
```