# Dismissible Alerts

> Alerts with a close button so users can clear a notice once read. Use for cookie banners, promotions, and warnings that should not stay forever.

A shadcn/ui block from the [@shadcn-ui-blocks](https://www.shadcn-ui-blocks.com) registry, listed on [shadcn.exchange](https://shadcn.exchange/r/shadcn-ui-blocks/components-alerts-dismissible-alerts).

- Page, with a live preview: https://shadcn.exchange/r/shadcn-ui-blocks/components-alerts-dismissible-alerts
- Screenshot: https://abzjhwgwpdpz7ua5.public.blob.vercel-storage.com/shots/shadcn-ui-blocks/components-alerts-dismissible-alerts-light-a3fa2014e9a8b7b9.png
- Registry item: https://www.shadcn-ui-blocks.com/r/components-alerts-dismissible-alerts.json
- Listed: 2026-10-13, source last changed 2026-10-13

## Install

```bash
npx shadcn@latest add https://www.shadcn-ui-blocks.com/r/components-alerts-dismissible-alerts.json
```

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

## Dependencies

- npm packages: `class-variance-authority`, `lucide-react`, `radix-ui`

## Files

### `components/blocks/components/alerts/dismissible-alerts.tsx`

```tsx
import { useState } from 'react';
import { Alert, AlertDescription, AlertTitle } from '@/components/ui/alert';
import { Button } from '@/components/ui/button';
import {
  AlertCircle,
  AlertTriangle,
  CheckCircle,
  X,
  XCircle,
} from 'lucide-react';

export default function DismissibleAlerts() {
  const [alerts, setAlerts] = useState({
    default: true,
    destructive: true,
    success: true,
    warning: true,
    info: true,
  });

  const closeAlert = (type: keyof typeof alerts) => {
    setAlerts((prev) => ({ ...prev, [type]: false }));
  };

  const resetAlerts = () => {
    setAlerts({
      default: true,
      destructive: true,
      success: true,
      warning: true,
      info: true,
    });
  };

  return (
    <div className="p-6">
      <div className="flex flex-col gap-4">
        {alerts.default && (
          <Alert className="relative shadow-sm">
            <AlertTitle>Default Alert</AlertTitle>
            <AlertDescription>
              This is a dismissible default alert.
            </AlertDescription>
            <Button
              variant="ghost"
              size="icon"
              className="absolute top-2 right-2 h-6 w-6"
              onClick={() => closeAlert('default')}
            >
              <X className="h-4 w-4" />
            </Button>
          </Alert>
        )}

        {alerts.destructive && (
          <Alert variant="destructive" className="relative shadow-sm">
            <XCircle className="h-4 w-4" />
            <AlertTitle>Destructive Alert</AlertTitle>
            <AlertDescription>
              This is a dismissible destructive alert.
            </AlertDescription>
            <Button
              variant="ghost"
              size="icon"
              className="text-destructive hover:bg-destructive/10 absolute top-2 right-2 h-6 w-6 !p-0"
              onClick={() => closeAlert('destructive')}
            >
              <X className="h-4 w-4" />
            </Button>
          </Alert>
        )}

        {alerts.success && (
          <Alert className="relative border-green-500/50 text-green-700 shadow-sm dark:border-green-500 dark:text-green-400 [&>svg]:text-green-500">
            <CheckCircle className="h-4 w-4" />
            <AlertTitle>Success Alert</AlertTitle>
            <AlertDescription>
              This is a dismissible success alert.
            </AlertDescription>
            <Button
              variant="ghost"
              size="icon"
              className="absolute top-2 right-2 h-6 w-6 !p-0 text-green-700 hover:bg-green-500/10 dark:text-green-400"
              onClick={() => closeAlert('success')}
            >
              <X className="h-4 w-4" />
            </Button>
          </Alert>
        )}

        {alerts.warning && (
          <Alert className="relative border-yellow-500/50 text-yellow-700 shadow-sm dark:border-yellow-500 dark:text-yellow-400 [&>svg]:text-yellow-500">
            <AlertTriangle className="h-4 w-4" />
            <AlertTitle>Warning Alert</AlertTitle>
            <AlertDescription>
              This is a dismissible warning alert.
            </AlertDescription>
            <Button
              variant="ghost"
              size="icon"
              className="absolute top-2 right-2 h-6 w-6 !p-0 text-yellow-700 hover:bg-yellow-500/10 dark:text-yellow-400"
              onClick={() => closeAlert('warning')}
            >
              <X className="h-4 w-4" />
            </Button>
          </Alert>
        )}

        {alerts.info && (
          <Alert className="relative border-blue-500/50 text-blue-700 shadow-sm dark:border-blue-500 dark:text-blue-400 [&>svg]:text-blue-500">
            <AlertCircle className="h-4 w-4" />
            <AlertTitle>Info Alert</AlertTitle>
            <AlertDescription>
              This is a dismissible info alert.
            </AlertDescription>
            <Button
              variant="ghost"
              size="icon"
              className="absolute top-2 right-2 h-6 w-6 !p-0 text-blue-700 hover:bg-blue-500/10 dark:text-blue-400"
              onClick={() => closeAlert('info')}
            >
              <X className="h-4 w-4" />
            </Button>
          </Alert>
        )}
      </div>

      {!Object.values(alerts).every(Boolean) && (
        <Button
          className="mt-6 shadow-md transition-shadow hover:shadow-lg"
          onClick={resetAlerts}
        >
          Reset Alerts
        </Button>
      )}
    </div>
  );
}
```

### `components/ui/alert.tsx`

```tsx
import * as React from "react"
import { cva, type VariantProps } from "class-variance-authority"

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

const alertVariants = cva(
  "group/alert relative grid w-full gap-0.5 rounded-lg border px-4 py-3 text-left text-sm has-data-[slot=alert-action]:relative has-data-[slot=alert-action]:pr-18 has-[>svg]:grid-cols-[auto_1fr] has-[>svg]:gap-x-2.5 *:[svg]:row-span-2 *:[svg]:translate-y-0.5 *:[svg]:text-current *:[svg:not([class*='size-'])]:size-4",
  {
    variants: {
      variant: {
        default: "bg-card text-card-foreground",
        destructive:
          "bg-card text-destructive *:data-[slot=alert-description]:text-destructive/90 *:[svg]:text-current",
      },
    },
    defaultVariants: {
      variant: "default",
    },
  }
)

function Alert({
  className,
  variant,
  ...props
}: React.ComponentProps<"div"> & VariantProps<typeof alertVariants>) {
  return (
    <div
      data-slot="alert"
      role="alert"
      className={cn(alertVariants({ variant }), className)}
      {...props}
    />
  )
}

function AlertTitle({ className, ...props }: React.ComponentProps<"div">) {
  return (
    <div
      data-slot="alert-title"
      className={cn(
        "font-medium group-has-[>svg]/alert:col-start-2 [&_a]:underline [&_a]:underline-offset-3 [&_a]:hover:text-foreground",
        className
      )}
      {...props}
    />
  )
}

function AlertDescription({
  className,
  ...props
}: React.ComponentProps<"div">) {
  return (
    <div
      data-slot="alert-description"
      className={cn(
        "text-sm text-balance text-muted-foreground md:text-pretty [&_a]:underline [&_a]:underline-offset-3 [&_a]:hover:text-foreground [&_p:not(:last-child)]:mb-4",
        className
      )}
      {...props}
    />
  )
}

function AlertAction({ className, ...props }: React.ComponentProps<"div">) {
  return (
    <div
      data-slot="alert-action"
      className={cn("absolute top-2.5 right-3", className)}
      {...props}
    />
  )
}

export { Alert, AlertTitle, AlertDescription, AlertAction }
```

### `components/ui/button.tsx`

```tsx
import * as React from "react"
import { cva, type VariantProps } from "class-variance-authority"
import { Slot } from "radix-ui"

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

const buttonVariants = cva(
  "group/button inline-flex shrink-0 items-center justify-center rounded-md border border-transparent bg-clip-padding text-sm font-medium whitespace-nowrap transition-all outline-none select-none focus-visible:border-ring focus-visible:ring-3 focus-visible:ring-ring/50 active:not-aria-[haspopup]:translate-y-px disabled:pointer-events-none disabled:opacity-50 aria-invalid:border-destructive aria-invalid:ring-3 aria-invalid:ring-destructive/20 dark:aria-invalid:border-destructive/50 dark:aria-invalid:ring-destructive/40 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
  {
    variants: {
      variant: {
        default: "bg-primary text-primary-foreground hover:bg-primary/80",
        outline:
          "border-border bg-background shadow-xs hover:bg-muted hover:text-foreground aria-expanded:bg-muted aria-expanded:text-foreground dark:border-input dark:bg-input/30 dark:hover:bg-input/50",
        secondary:
          "bg-secondary text-secondary-foreground hover:bg-secondary/80 aria-expanded:bg-secondary aria-expanded:text-secondary-foreground",
        ghost:
          "hover:bg-muted hover:text-foreground aria-expanded:bg-muted aria-expanded:text-foreground dark:hover:bg-muted/50",
        destructive:
          "bg-destructive/10 text-destructive hover:bg-destructive/20 focus-visible:border-destructive/40 focus-visible:ring-destructive/20 dark:bg-destructive/20 dark:hover:bg-destructive/30 dark:focus-visible:ring-destructive/40",
        link: "text-primary underline-offset-4 hover:underline",
      },
      size: {
        default:
          "h-9 gap-1.5 px-2.5 in-data-[slot=button-group]:rounded-md has-data-[icon=inline-end]:pr-2 has-data-[icon=inline-start]:pl-2",
        xs: "h-6 gap-1 rounded-[min(var(--radius-md),8px)] px-2 text-xs in-data-[slot=button-group]:rounded-md has-data-[icon=inline-end]:pr-1.5 has-data-[icon=inline-start]:pl-1.5 [&_svg:not([class*='size-'])]:size-3",
        sm: "h-8 gap-1 rounded-[min(var(--radius-md),10px)] px-2.5 in-data-[slot=button-group]:rounded-md has-data-[icon=inline-end]:pr-1.5 has-data-[icon=inline-start]:pl-1.5",
        lg: "h-10 gap-1.5 px-2.5 has-data-[icon=inline-end]:pr-2 has-data-[icon=inline-start]:pl-2",
        icon: "size-9",
        "icon-xs":
          "size-6 rounded-[min(var(--radius-md),8px)] in-data-[slot=button-group]:rounded-md [&_svg:not([class*='size-'])]:size-3",
        "icon-sm":
          "size-8 rounded-[min(var(--radius-md),10px)] in-data-[slot=button-group]:rounded-md",
        "icon-lg": "size-10",
      },
    },
    defaultVariants: {
      variant: "default",
      size: "default",
    },
  }
)

function Button({
  className,
  variant = "default",
  size = "default",
  asChild = false,
  ...props
}: React.ComponentProps<"button"> &
  VariantProps<typeof buttonVariants> & {
    asChild?: boolean
  }) {
  const Comp = asChild ? Slot.Root : "button"

  return (
    <Comp
      data-slot="button"
      data-variant={variant}
      data-size={size}
      className={cn(buttonVariants({ variant, size, className }))}
      {...props}
    />
  )
}

export { Button, buttonVariants }
```