UI Components Easy

Toast Notification Stack

A lightweight toast notification system with success, error, warning, and info variants. Toasts stack, auto-dismiss, and support manual close.

Open in Lab

vanilla-js css animation

Targets: JS HTML React Native

Expo Snack

Code

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: system-ui, -apple-system, sans-serif;
  background: #0f172a;
  color: #f1f5f9;
  min-height: 100vh;
  display: grid;
  place-items: center;
}

/* ── Demo controls ── */
.demo-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.demo-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: #94a3b8;
}

.demo-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.btn {
  padding: 0.6rem 1.25rem;
  border-radius: 0.625rem;
  border: 1px solid transparent;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s ease, transform 0.1s ease;
}

.btn:hover {
  opacity: 0.85;
  transform: translateY(-1px);
}
.btn:active {
  transform: translateY(0);
}

.btn--success {
  background: rgba(34, 197, 94, 0.15);
  border-color: rgba(34, 197, 94, 0.3);
  color: #4ade80;
}
.btn--error {
  background: rgba(239, 68, 68, 0.15);
  border-color: rgba(239, 68, 68, 0.3);
  color: #f87171;
}
.btn--warning {
  background: rgba(234, 179, 8, 0.15);
  border-color: rgba(234, 179, 8, 0.3);
  color: #facc15;
}
.btn--info {
  background: rgba(56, 189, 248, 0.15);
  border-color: rgba(56, 189, 248, 0.3);
  color: #38bdf8;
}

/* ── Toast container ── */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  display: flex;
  flex-direction: column-reverse;
  gap: 0.625rem;
  z-index: 9999;
  pointer-events: none;
}

/* ── Toast ── */
.toast {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.875rem 1rem;
  border-radius: 0.75rem;
  min-width: 280px;
  max-width: 360px;
  background: #1e293b;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  pointer-events: all;
  animation: toast-in 0.28s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.toast.out {
  animation: toast-out 0.22s ease forwards;
}

@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateX(110%) scale(0.9);
  }
  to {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
}

@keyframes toast-out {
  from {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
  to {
    opacity: 0;
    transform: translateX(110%) scale(0.9);
  }
}

/* ── Variants ── */
.toast--success {
  border-left: 3px solid #4ade80;
}
.toast--error {
  border-left: 3px solid #f87171;
}
.toast--warning {
  border-left: 3px solid #facc15;
}
.toast--info {
  border-left: 3px solid #38bdf8;
}

.toast__icon {
  font-size: 1.125rem;
  flex-shrink: 0;
  margin-top: 0.05rem;
}

.toast__body {
  flex: 1;
}

.toast__title {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.15rem;
}

.toast--success .toast__title {
  color: #4ade80;
}
.toast--error .toast__title {
  color: #f87171;
}
.toast--warning .toast__title {
  color: #facc15;
}
.toast--info .toast__title {
  color: #38bdf8;
}

.toast__msg {
  font-size: 0.875rem;
  color: #94a3b8;
  line-height: 1.5;
}

.toast__close {
  background: transparent;
  border: none;
  color: #475569;
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
  padding: 0.15rem;
  border-radius: 0.25rem;
  flex-shrink: 0;
  transition: color 0.15s ease;
}

.toast__close:hover {
  color: #94a3b8;
}

(function () {
  "use strict";

  const container = document.getElementById("toast-container");

  const ICONS = {
    success: "✓",
    error: "✕",
    warning: "⚠",
    info: "ℹ",
  };

  const TITLES = {
    success: "Success",
    error: "Error",
    warning: "Warning",
    info: "Info",
  };

  /**
   * Show a toast notification.
   * @param {string} message
   * @param {"success"|"error"|"warning"|"info"} type
   * @param {number} duration  Auto-dismiss delay in ms (default 4000)
   */
  function showToast(message, type = "info", duration = 4000) {
    const toast = document.createElement("div");
    toast.className = `toast toast--${type}`;
    toast.setAttribute("role", "status");
    toast.setAttribute("aria-live", "polite");

    toast.innerHTML = `
      <span class="toast__icon" aria-hidden="true">${ICONS[type]}</span>
      <div class="toast__body">
        <span class="toast__title">${TITLES[type]}</span>
        <span class="toast__msg">${message}</span>
      </div>
      <button class="toast__close" aria-label="Dismiss notification">✕</button>
    `;

    container.appendChild(toast);

    // Auto-dismiss
    const timer = setTimeout(() => dismiss(toast), duration);

    // Manual dismiss
    toast.querySelector(".toast__close").addEventListener("click", () => {
      clearTimeout(timer);
      dismiss(toast);
    });
  }

  function dismiss(toast) {
    toast.classList.add("out");
    toast.addEventListener("animationend", () => toast.remove(), { once: true });
  }

  // Expose globally so onclick attributes work
  window.showToast = showToast;
})();

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>Toast Notification Stack</title>
  <link rel="stylesheet" href="style.css" />
</head>
<body>

  <div class="demo-center">
    <h2 class="demo-title">Toast Notifications</h2>
    <div class="demo-buttons">
      <button class="btn btn--success" onclick="showToast('Changes saved successfully!', 'success')">
        Success
      </button>
      <button class="btn btn--error" onclick="showToast('Something went wrong. Please try again.', 'error')">
        Error
      </button>
      <button class="btn btn--warning" onclick="showToast('Your session expires in 5 minutes.', 'warning')">
        Warning
      </button>
      <button class="btn btn--info" onclick="showToast('New version available. Refresh to update.', 'info')">
        Info
      </button>
    </div>
  </div>

  <!-- Toast container — fixed position, bottom-right -->
  <div class="toast-container" id="toast-container" aria-live="polite" aria-atomic="false"></div>

  <script src="script.js"></script>
</body>
</html>

import React, { createContext, useContext, useCallback, useRef, useState } from "react";
import { View, Text, TouchableOpacity, Animated, StyleSheet } from "react-native";

/* ── Types ────────────────────────────────────────────── */

type ToastVariant = "success" | "error" | "warning" | "info";

interface Toast {
  id: number;
  message: string;
  variant: ToastVariant;
}

interface ToastContextValue {
  show: (message: string, variant: ToastVariant) => void;
}

/* ── Variant styles ───────────────────────────────────── */

const VARIANT: Record<ToastVariant, { bg: string; icon: string }> = {
  success: { bg: "#16a34a", icon: "\u2713" },
  error: { bg: "#dc2626", icon: "\u2717" },
  warning: { bg: "#d97706", icon: "\u26A0" },
  info: { bg: "#2563eb", icon: "\u2139" },
};

const AUTO_DISMISS = 3500;

/* ── Single toast ─────────────────────────────────────── */

function ToastItem({
  toast,
  onDismiss,
}: {
  toast: Toast;
  onDismiss: (id: number) => void;
}) {
  const translateY = useRef(new Animated.Value(-80)).current;
  const opacity = useRef(new Animated.Value(0)).current;

  React.useEffect(() => {
    Animated.parallel([
      Animated.spring(translateY, {
        toValue: 0,
        useNativeDriver: true,
        friction: 8,
      }),
      Animated.timing(opacity, {
        toValue: 1,
        duration: 200,
        useNativeDriver: true,
      }),
    ]).start();

    const timer = setTimeout(() => dismiss(), AUTO_DISMISS);
    return () => clearTimeout(timer);
  }, []);

  const dismiss = useCallback(() => {
    Animated.parallel([
      Animated.timing(translateY, {
        toValue: -80,
        duration: 250,
        useNativeDriver: true,
      }),
      Animated.timing(opacity, {
        toValue: 0,
        duration: 250,
        useNativeDriver: true,
      }),
    ]).start(() => onDismiss(toast.id));
  }, [toast.id, onDismiss, translateY, opacity]);

  const v = VARIANT[toast.variant];

  return (
    <Animated.View
      style={[styles.toast, { backgroundColor: v.bg, transform: [{ translateY }], opacity }]}
    >
      <Text style={styles.icon}>{v.icon}</Text>
      <Text style={styles.message}>{toast.message}</Text>
      <TouchableOpacity onPress={dismiss} hitSlop={8}>
        <Text style={styles.close}>{"\u2717"}</Text>
      </TouchableOpacity>
    </Animated.View>
  );
}

/* ── Provider ─────────────────────────────────────────── */

const ToastContext = createContext<ToastContextValue>({
  show: () => {},
});

export function useToast() {
  return useContext(ToastContext);
}

export function ToastProvider({ children }: { children: React.ReactNode }) {
  const [toasts, setToasts] = useState<Toast[]>([]);
  const nextId = useRef(0);

  const show = useCallback((message: string, variant: ToastVariant) => {
    const id = nextId.current++;
    setToasts((prev) => [...prev, { id, message, variant }]);
  }, []);

  const remove = useCallback((id: number) => {
    setToasts((prev) => prev.filter((t) => t.id !== id));
  }, []);

  return (
    <ToastContext.Provider value={{ show }}>
      {children}
      <View style={styles.container} pointerEvents="box-none">
        {toasts.map((t) => (
          <ToastItem key={t.id} toast={t} onDismiss={remove} />
        ))}
      </View>
    </ToastContext.Provider>
  );
}

/* ── Styles ───────────────────────────────────────────── */

const styles = StyleSheet.create({
  container: {
    position: "absolute",
    top: 60,
    left: 16,
    right: 16,
    alignItems: "center",
    zIndex: 9999,
  },
  toast: {
    flexDirection: "row",
    alignItems: "center",
    width: "100%",
    paddingVertical: 14,
    paddingHorizontal: 16,
    borderRadius: 12,
    marginBottom: 8,
    shadowColor: "#000",
    shadowOffset: { width: 0, height: 4 },
    shadowOpacity: 0.3,
    shadowRadius: 6,
    elevation: 6,
  },
  icon: {
    color: "#fff",
    fontSize: 16,
    marginRight: 10,
    fontWeight: "700",
  },
  message: {
    color: "#fff",
    fontSize: 14,
    flex: 1,
  },
  close: {
    color: "rgba(255,255,255,0.7)",
    fontSize: 16,
    marginLeft: 8,
  },
});

/* ── Demo ─────────────────────────────────────────────── */

function DemoContent() {
  const { show } = useToast();

  const buttons: { label: string; variant: ToastVariant; color: string }[] = [
    { label: "Success", variant: "success", color: "#16a34a" },
    { label: "Error", variant: "error", color: "#dc2626" },
    { label: "Warning", variant: "warning", color: "#d97706" },
    { label: "Info", variant: "info", color: "#2563eb" },
  ];

  return (
    <View style={demo.container}>
      <Text style={demo.heading}>Toast System</Text>
      {buttons.map((b) => (
        <TouchableOpacity
          key={b.variant}
          style={[demo.btn, { backgroundColor: b.color }]}
          onPress={() => show(`This is a ${b.variant} toast!`, b.variant)}
        >
          <Text style={demo.btnText}>Show {b.label}</Text>
        </TouchableOpacity>
      ))}
    </View>
  );
}

export default function App() {
  return (
    <ToastProvider>
      <DemoContent />
    </ToastProvider>
  );
}

const demo = StyleSheet.create({
  container: {
    flex: 1,
    backgroundColor: "#0f172a",
    justifyContent: "center",
    alignItems: "center",
    padding: 24,
  },
  heading: {
    color: "#fff",
    fontSize: 22,
    fontWeight: "700",
    marginBottom: 32,
  },
  btn: {
    width: 200,
    paddingVertical: 14,
    borderRadius: 10,
    alignItems: "center",
    marginBottom: 12,
  },
  btnText: {
    color: "#fff",
    fontSize: 16,
    fontWeight: "600",
  },
});

Toast Notification Stack

A zero-dependency toast notification system with four semantic variants: success, error, warning, and info. Toasts slide in from the bottom-right, stack vertically, and auto-dismiss after 4 seconds.

How it works

showToast(message, type) creates a <div> with the right variant class and appends it to a fixed container
A CSS slide-in keyframe animates entry; a slide-out class triggers exit before removal
Auto-dismiss uses setTimeout — clicking the × button cancels the timer and dismisses immediately
Toasts stack naturally via flexbox column-reverse

Variants

success — green accent, checkmark icon
error — red accent, X icon
warning — amber accent, triangle icon
info — blue accent, info icon

When to use it

Form submission feedback
Async operation results (save, delete, upload)
System alerts and status updates