Toast Notification

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<!--
  Toast Notification System
  - Stackable notifications
  - Auto-dismiss with progress bar
  - Different types (success, error, info)
  - Accessible announcements
  - Smooth animations
-->

<div class="toast-container" role="log" aria-live="polite" aria-atomic="true">
  <!-- Toasts will be inserted here dynamically -->
</div>

<div class="demo-buttons">
  <button onclick="showToast('success', 'Success!', 'Operation completed successfully.')">
    Show Success Toast
  </button>
  <button onclick="showToast('error', 'Error!', 'Something went wrong.')">
    Show Error Toast
  </button>
  <button onclick="showToast('info', 'Info', 'This is an informational message.')">
    Show Info Toast
  </button>
</div>

<style>
.toast-container {
  position: fixed;
  top: 1rem;
  right: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  z-index: 1000;
  pointer-events: none;
}

.toast {
  --toast-bg: white;
  --toast-border: var(--ds-border, #ddd);
  --toast-progress: var(--ds-accent, #4a90e2);
  
  position: relative;
  min-width: 300px;
  max-width: 400px;
  background: var(--toast-bg);
  border: 1px solid var(--toast-border);
  border-radius: var(--ds-radius-sm, 4px);
  padding: 1rem;
  margin: 0;
  box-shadow: var(--ds-shadow-lg, 0 4px 12px rgba(0, 0, 0, 0.15));
  pointer-events: auto;
  overflow: hidden;
  animation: toastSlideIn 0.3s;
}

.toast.removing {
  animation: toastSlideOut 0.3s forwards;
}

.toast-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--toast-progress);
  transform-origin: left;
  animation: toastProgress 5s linear forwards;
}

.toast-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.toast-icon {
  width: 20px;
  height: 20px;
}

.toast-title {
  font-weight: bold;
  margin: 0;
  flex-grow: 1;
}

.toast-close {
  padding: 0.25rem;
  border: none;
  background: none;
  cursor: pointer;
  opacity: 0.5;
  transition: opacity 0.3s;
}

.toast-close:hover {
  opacity: 1;
}

.toast-message {
  margin: 0;
}

/* Toast types */
.toast[data-type="success"] {
  --toast-border: var(--ds-success, #4caf50);
  border-left: 4px solid var(--toast-border);
}

.toast[data-type="error"] {
  --toast-border: var(--ds-danger, #f44336);
  border-left: 4px solid var(--toast-border);
}

.toast[data-type="info"] {
  --toast-border: var(--ds-accent, #2196f3);
  border-left: 4px solid var(--toast-border);
}

/* Animations */
@keyframes toastSlideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes toastSlideOut {
  from {
    transform: translateX(0);
    opacity: 1;
  }
  to {
    transform: translateX(100%);
    opacity: 0;
  }
}

@keyframes toastProgress {
  from {
    transform: scaleX(1);
  }
  to {
    transform: scaleX(0);
  }
}

/* Demo buttons */
.demo-buttons {
  display: flex;
  gap: 1rem;
  padding: 1rem;
}

.demo-buttons button {
  padding: 0.5rem 1rem;
  border: 1px solid var(--ds-border, #ddd);
  border-radius: var(--ds-radius-sm, 4px);
  background: white;
  cursor: pointer;
  transition: all 0.3s;
}

.demo-buttons button:hover {
  background: var(--ds-surface-2, #f5f5f5);
}

/* devsnips-qa:quality-bar */
@media (prefers-reduced-motion: reduce){*{animation-duration:0.01ms !important;animation-iteration-count:1 !important;transition-duration:0.01ms !important;scroll-behavior:auto !important;}}
:focus-visible{outline:2px solid var(--ds-accent, #2563eb);outline-offset:2px;}


/* DevSnips design tokens (Swiss) — edit tokens.css to re-theme */
:root{
--ds-bg:#fff;--ds-surface:#fff;--ds-surface-2:#f7f7f7;--ds-surface-3:#ededed;--ds-foreground:#0a0a0a;--ds-muted:#525252;--ds-subtle:#a3a3a3;--ds-border:#e5e5e5;--ds-border-strong:#d4d4d4;--ds-accent:#2563eb;--ds-accent-hover:#1d4ed8;--ds-accent-fg:#fff;--ds-accent-soft:#eff6ff;--ds-success:#16a34a;--ds-success-soft:#f0fdf4;--ds-warning:#d97706;--ds-warning-soft:#fffbeb;--ds-danger:#dc2626;--ds-danger-soft:#fef2f2;--ds-info:#2563eb;--ds-info-soft:#eff6ff;--ds-font-sans:system-ui,-apple-system,'Segoe UI',Roboto,Inter,'Helvetica Neue',Arial,sans-serif;--ds-font-mono:ui-monospace,'SF Mono','JetBrains Mono',Menlo,Consolas,monospace;--ds-text-xs:.75rem;--ds-text-sm:.875rem;--ds-text-base:1rem;--ds-text-lg:1.125rem;--ds-text-xl:1.25rem;--ds-text-2xl:1.5rem;--ds-text-3xl:1.875rem;--ds-text-4xl:2.25rem;--ds-leading-tight:1.25;--ds-leading-normal:1.5;--ds-leading-relaxed:1.625;--ds-weight-normal:400;--ds-weight-medium:500;--ds-weight-semibold:600;--ds-weight-bold:700;--ds-space-0:0;--ds-space-px:1px;--ds-space-1:.25rem;--ds-space-2:.5rem;--ds-space-3:.75rem;--ds-space-4:1rem;--ds-space-5:1.25rem;--ds-space-6:1.5rem;--ds-space-8:2rem;--ds-space-10:2.5rem;--ds-space-12:3rem;--ds-space-16:4rem;--ds-radius-sm:.25rem;--ds-radius-md:.5rem;--ds-radius-lg:.75rem;--ds-radius-xl:1rem;--ds-radius-2xl:1.5rem;--ds-radius-full:9999px;--ds-shadow-sm:0 1px 2px 0 rgba(0,0,0,.05);--ds-shadow-md:0 4px 6px -1px rgba(0,0,0,.08),0 2px 4px -2px rgba(0,0,0,.05);--ds-shadow-lg:0 10px 15px -3px rgba(0,0,0,.1),0 4px 6px -4px rgba(0,0,0,.05);--ds-duration-fast:120ms;--ds-duration-normal:200ms;--ds-duration-slow:300ms;--ds-ease-out:cubic-bezier(.16,1,.3,1);--ds-ease-in-out:cubic-bezier(.4,0,.2,1);--ds-ring:0 0 0 2px #2563eb;--ds-container:1200px;--ds-gutter:1rem;
}
@media (prefers-color-scheme: dark){:root{--ds-bg:#0a0a0a;--ds-surface:#111;--ds-surface-2:#171717;--ds-surface-3:#1f1f1f;--ds-foreground:#fafafa;--ds-muted:#a3a3a3;--ds-subtle:#737373;--ds-border:#262626;--ds-border-strong:#404040;--ds-accent:#3b82f6;--ds-accent-hover:#60a5fa;--ds-accent-fg:#fff;--ds-accent-soft:#172554;--ds-success:#22c55e;--ds-success-soft:#052e16;--ds-warning:#f59e0b;--ds-warning-soft:#422006;--ds-danger:#ef4444;--ds-danger-soft:#450a0a;--ds-info:#3b82f6;--ds-info-soft:#172554;--ds-ring:0 0 0 2px #3b82f6;}}
</style>

<script>
class ToastNotification {
  static container = document.querySelector('.toast-container');
  static icons = {
    success: '<svg viewBox="0 0 24 24" width="20" height="20"><path d="M9 16.2L4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4L9 16.2z" fill="currentColor"/></svg>',
    error: '<svg viewBox="0 0 24 24" width="20" height="20"><path d="M19 6.41L17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12z" fill="currentColor"/></svg>',
    info: '<svg viewBox="0 0 24 24" width="20" height="20"><path d="M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm1 15h-2v-6h2v6zm0-8h-2V7h2v2z" fill="currentColor"/></svg>'
  };
  
  constructor(type, title, message) {
    this.type = type;
    this.title = title;
    this.message = message;
    this.element = null;
    this.timeout = null;
    
    this.create();
    this.show();
  }
  
  create() {
    this.element = document.createElement('div');
    this.element.className = 'toast';
    this.element.setAttribute('data-type', this.type);
    this.element.setAttribute('role', 'alert');
    
    this.element.innerHTML = `
      <div class="toast-header">
        <span class="toast-icon" aria-hidden="true">
          ${ToastNotification.icons[this.type]}
        </span>
        <h3 class="toast-title">${this.title}</h3>
        <button class="toast-close" aria-label="Close notification">
          ${ToastNotification.icons.error}
        </button>
      </div>
      <p class="toast-message">${this.message}</p>
      <div class="toast-progress"></div>
    `;
    
    this.element.querySelector('.toast-close')
      .addEventListener('click', () => this.close());
  }
  
  show() {
    ToastNotification.container.appendChild(this.element);
    
    // Auto-dismiss after 5 seconds
    this.timeout = setTimeout(() => this.close(), 5000);
    
    // Clear timeout if user hovers over toast
    this.element.addEventListener('mouseenter', () => {
      clearTimeout(this.timeout);
      this.element.querySelector('.toast-progress').style.animationPlayState = 'paused';
    });
    
    this.element.addEventListener('mouseleave', () => {
      this.timeout = setTimeout(() => this.close(), 5000);
      this.element.querySelector('.toast-progress').style.animationPlayState = 'running';
    });
  }
  
  close() {
    clearTimeout(this.timeout);
    this.element.classList.add('removing');
    
    this.element.addEventListener('animationend', () => {
      this.element.remove();
    });
  }
}

function showToast(type, title, message) {
  new ToastNotification(type, title, message);
}
</script>

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# Snippet 08 Toast Notification

Snippet 08 Toast Notification with animations and hover interactions.

**Technology:** vanilla
**Category:** components
**Subcategory:** modals

**Tags:** badge, animation, hover-effect, shadow, flexbox, center, layout, button



**Responsive:** Yes