# Base Button

> shadcn-style base button with 6 variants and 4 sizes, built on class-variance-authority.

- Author: Atelier UI
- License: MIT
- Page: https://chromotion.dev/en/components/base-button
- Site: Atelier UI (https://chromotion.dev)

## Install

```bash
npx shadcn@latest add https://chromotion.dev/r/base-button.json
```

Stack: React + TypeScript + Tailwind CSS v4, shadcn/ui conventions. `cn` comes from `@/lib/utils`.

## Dependencies

```bash
npm install class-variance-authority
```

## Usage

```tsx title="components/base-button-demo.tsx"
import { Mail, Plus } from "lucide-react"

import { Button } from "@/components/base-button"

export default function BaseButtonDemo() {
  return (
    <div className="flex flex-col items-center gap-6 p-8">
      <div className="flex flex-wrap items-center justify-center gap-3">
        <Button>Default</Button>
        <Button variant="secondary">Secondary</Button>
        <Button variant="outline">Outline</Button>
        <Button variant="ghost">Ghost</Button>
        <Button variant="destructive">Destructive</Button>
        <Button variant="link">Link</Button>
      </div>
      <div className="flex flex-wrap items-center justify-center gap-3">
        <Button size="sm">Small</Button>
        <Button>Default</Button>
        <Button size="lg">Large</Button>
        <Button size="icon" aria-label="Add">
          <Plus />
        </Button>
        <Button variant="outline">
          <Mail /> With icon
        </Button>
        <Button disabled>Disabled</Button>
      </div>
    </div>
  )
}
```

## Source

```tsx title="components/base-button.tsx"
import * as React from "react"
import { cva, type VariantProps } from "class-variance-authority"

import { cn } from "@/lib/utils"

export const buttonVariants = cva(
  "inline-flex shrink-0 items-center justify-center gap-2 rounded-md text-sm font-medium whitespace-nowrap transition-colors outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 focus-visible:ring-offset-background disabled:pointer-events-none disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
  {
    variants: {
      variant: {
        default: "bg-primary text-primary-foreground shadow-xs hover:bg-primary/90",
        secondary: "bg-secondary text-secondary-foreground hover:bg-secondary/80",
        outline: "border border-input bg-background shadow-xs hover:bg-accent hover:text-accent-foreground",
        ghost: "hover:bg-accent hover:text-accent-foreground",
        destructive: "bg-destructive text-white shadow-xs hover:bg-destructive/90 dark:bg-red-600 dark:hover:bg-red-700",
        link: "text-primary underline-offset-4 hover:underline",
      },
      size: {
        default: "h-9 px-4 py-2",
        sm: "h-8 gap-1.5 rounded-md px-3 text-xs",
        lg: "h-11 rounded-md px-8",
        icon: "size-9",
      },
    },
    defaultVariants: {
      variant: "default",
      size: "default",
    },
  }
)

export interface ButtonProps extends React.ComponentProps<"button">, VariantProps<typeof buttonVariants> {}

export function Button({ variant, size, className, ...props }: ButtonProps) {
  return <button className={cn(buttonVariants({ variant, size }), className)} {...props} />
}
```