Dynamic Gradient Cookie Consent Banner
Intermediate
A stunning cookie consent banner featuring dynamic gradient backgrounds, smooth animations, and modern interactive design
Live Preview
Code Implementation
HTML
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Dynamic Gradient Cookie Banner</title>
<style>
:root {
--primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
--secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
--accent-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
--success-gradient: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
--warning-gradient: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
--text-light: #ffffff;
--text-dark: #2d3748;
--text-muted: rgba(255, 255, 255, 0.8);
--backdrop: rgba(0, 0, 0, 0.3);
--border-radius: 16px;
--shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
--transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
body {
font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
background-size: 400% 400%;
animation: gradientShift 15s ease infinite;
min-height: 100vh;
color: var(--text-light);
line-height: 1.6;
}
@keyframes gradientShift {
0% { background-position: 0% 50%; }
50% { background-position: 100% 50%; }
100% { background-position: 0% 50%; }
}
.demo-content {
padding: 3rem 2rem;
text-align: center;
max-width: 800px;
margin: 0 auto;
}
.demo-content h1 {
font-size: 3rem;
font-weight: 800;
margin-bottom: 1rem;
background: linear-gradient(135deg, #ffffff 0%, #f0f0f0 100%);
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
background-clip: text;
text-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}
.demo-content p {
font-size: 1.2rem;
color: var(--text-muted);
margin-bottom: 2rem;
}
/* Dynamic Gradient Cookie Banner */
.gradient-cookie-banner {
position: fixed;
bottom: 2rem;
left: 2rem;
right: 2rem;
background: linear-gradient(135deg, rgba(102, 126, 234, 0.95) 0%, rgba(118, 75, 162, 0.95) 100%);
backdrop-filter: blur(20px);
border: 1px solid rgba(255, 255, 255, 0.2);
border-radius: var(--border-radius);
padding: 2rem;
box-shadow: var(--shadow);
transform: translateY(120%);
transition: var(--transition);
z-index: 10000;
max-width: 1200px;
margin: 0 auto;
overflow: hidden;
position: relative;
}
.gradient-cookie-banner::before {
content: '';
position: absolute;
top: 0;
left: -100%;
width: 100%;
height: 100%;
background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
animation: shimmer 3s infinite;
}
@keyframes shimmer {
0% { left: -100%; }
100% { left: 100%; }
}
.gradient-cookie-banner.show {
transform: translateY(0);
}
.cookie-container {
display: grid;
grid-template-columns: auto 1fr auto;
gap: 2rem;
align-items: center;
position: relative;
z-index: 1;
}
.cookie-icon {
width: 60px;
height: 60px;
background: var(--accent-gradient);
border-radius: 50%;
display: flex;
align-items: center;
justify-content: center;
font-size: 2rem;
box-shadow: 0 8px 16px rgba(79, 172, 254, 0.3);
animation: pulse 2s infinite;
}
@keyframes pulse {
0%, 100% { transform: scale(1); }
50% { transform: scale(1.05); }
}
.cookie-content {
flex: 1;
}
.cookie-title {
font-size: 1.5rem;
font-weight: 700;
margin-bottom: 0.5rem;
color: var(--text-light);
background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 100%);
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
background-clip: text;
}
.cookie-description {
color: var(--text-muted);
font-size: 1rem;
line-height: 1.6;
}
.cookie-link {
color: #4facfe;
text-decoration: none;
font-weight: 600;
transition: var(--transition);
position: relative;
}
.cookie-link::after {
content: '';
position: absolute;
bottom: -2px;
left: 0;
width: 0;
height: 2px;
background: var(--accent-gradient);
transition: width 0.3s ease;
}
.cookie-link:hover::after {
width: 100%;
}
.cookie-actions {
display: flex;
gap: 1rem;
flex-wrap: wrap;
}
/* Gradient Buttons */
.gradient-btn {
padding: 0.875rem 1.75rem;
border: none;
border-radius: 12px;
font-family: inherit;
font-size: 0.95rem;
font-weight: 600;
cursor: pointer;
transition: var(--transition);
position: relative;
overflow: hidden;
min-width: 130px;
color: var(--text-light);
text-transform: uppercase;
letter-spacing: 0.5px;
}
.gradient-btn::before {
content: '';
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: linear-gradient(45deg, rgba(255, 255, 255, 0.1), transparent);
transform: translateX(-100%);
transition: transform 0.6s ease;
}
.gradient-btn:hover::before {
transform: translateX(100%);
}
.btn-accept {
background: var(--success-gradient);
box-shadow: 0 8px 16px rgba(67, 233, 123, 0.3);
}
.btn-accept:hover {
transform: translateY(-3px);
box-shadow: 0 12px 24px rgba(67, 233, 123, 0.4);
}
.btn-decline {
background: var(--warning-gradient);
box-shadow: 0 8px 16px rgba(250, 112, 154, 0.3);
}
.btn-decline:hover {
transform: translateY(-3px);
box-shadow: 0 12px 24px rgba(250, 112, 154, 0.4);
}
.btn-settings {
background: var(--accent-gradient);
box-shadow: 0 8px 16px rgba(79, 172, 254, 0.3);
}
.btn-settings:hover {
transform: translateY(-3px);
box-shadow: 0 12px 24px rgba(79, 172, 254, 0.4);
}
.gradient-btn:active {
transform: translateY(-1px);
}
/* Settings Modal */
.cookie-settings-modal {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: var(--backdrop);
backdrop-filter: blur(10px);
display: flex;
align-items: center;
justify-content: center;
z-index: 10001;
opacity: 0;
visibility: hidden;
transition: var(--transition);
}
.cookie-settings-modal.show {
opacity: 1;
visibility: visible;
}
.settings-content {
background: linear-gradient(135deg, rgba(102, 126, 234, 0.95) 0%, rgba(118, 75, 162, 0.95) 100%);
backdrop-filter: blur(20px);
border: 1px solid rgba(255, 255, 255, 0.2);
border-radius: var(--border-radius);
padding: 2.5rem;
max-width: 600px;
width: 90%;
max-height: 80vh;
overflow-y: auto;
box-shadow: 0 25px 50px rgba(0, 0, 0, 0.2);
transform: scale(0.9) translateY(20px);
transition: var(--transition);
position: relative;
}
.cookie-settings-modal.show .settings-content {
transform: scale(1) translateY(0);
}
.settings-content::before {
content: '';
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, transparent 50%, rgba(255, 255, 255, 0.05) 100%);
border-radius: var(--border-radius);
pointer-events: none;
}
.settings-header {
display: flex;
justify-content: space-between;
align-items: center;
margin-bottom: 2rem;
padding-bottom: 1rem;
border-bottom: 1px solid rgba(255, 255, 255, 0.2);
position: relative;
z-index: 1;
}
.settings-title {
font-size: 1.75rem;
font-weight: 700;
color: var(--text-light);
background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 100%);
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
background-clip: text;
}
.close-btn {
width: 44px;
height: 44px;
border: none;
border-radius: 50%;
background: var(--warning-gradient);
color: var(--text-light);
font-size: 1.5rem;
cursor: pointer;
transition: var(--transition);
display: flex;
align-items: center;
justify-content: center;
box-shadow: 0 4px 8px rgba(250, 112, 154, 0.3);
}
.close-btn:hover {
transform: scale(1.1) rotate(90deg);
box-shadow: 0 6px 12px rgba(250, 112, 154, 0.4);
}
.cookie-category {
margin-bottom: 2rem;
padding: 1.5rem;
background: rgba(255, 255, 255, 0.1);
border: 1px solid rgba(255, 255, 255, 0.2);
border-radius: 12px;
backdrop-filter: blur(10px);
position: relative;
z-index: 1;
}
.category-header {
display: flex;
justify-content: space-between;
align-items: center;
margin-bottom: 1rem;
}
.category-title {
font-weight: 700;
font-size: 1.2rem;
color: var(--text-light);
}
.category-description {
font-size: 0.95rem;
color: var(--text-muted);
line-height: 1.6;
}
/* Gradient Toggle Switch */
.gradient-toggle {
position: relative;
width: 64px;
height: 32px;
background: rgba(255, 255, 255, 0.2);
border-radius: 16px;
cursor: pointer;
transition: var(--transition);
border: 1px solid rgba(255, 255, 255, 0.3);
}
.gradient-toggle.active {
background: var(--success-gradient);
box-shadow: 0 4px 8px rgba(67, 233, 123, 0.3);
}
.gradient-toggle::before {
content: '';
position: absolute;
top: 2px;
left: 2px;
width: 28px;
height: 28px;
background: linear-gradient(135deg, #ffffff 0%, #f7fafc 100%);
border-radius: 50%;
transition: var(--transition);
box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}
.gradient-toggle.active::before {
transform: translateX(32px);
background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 100%);
}
.settings-actions {
display: flex;
gap: 1rem;
justify-content: flex-end;
margin-top: 2rem;
padding-top: 1rem;
border-top: 1px solid rgba(255, 255, 255, 0.2);
position: relative;
z-index: 1;
}
/* Responsive Design */
@media (max-width: 768px) {
.gradient-cookie-banner {
bottom: 1rem;
left: 1rem;
right: 1rem;
padding: 1.5rem;
}
.cookie-container {
grid-template-columns: 1fr;
gap: 1.5rem;
text-align: center;
}
.cookie-actions {
justify-content: center;
}
.gradient-btn {
flex: 1;
min-width: auto;
}
.settings-content {
padding: 2rem;
margin: 1rem;
}
.demo-content h1 {
font-size: 2rem;
}
}
@media (max-width: 480px) {
.cookie-actions {
flex-direction: column;
}
.gradient-btn {
width: 100%;
}
.cookie-container {
grid-template-columns: 1fr;
}
}
/* Demo Button */
.demo-btn {
padding: 1rem 2rem;
border: none;
border-radius: 12px;
background: var(--primary-gradient);
color: var(--text-light);
font-family: inherit;
font-size: 1.1rem;
font-weight: 600;
cursor: pointer;
transition: var(--transition);
box-shadow: 0 8px 16px rgba(102, 126, 234, 0.3);
text-transform: uppercase;
letter-spacing: 0.5px;
}
.demo-btn:hover {
transform: translateY(-3px);
box-shadow: 0 12px 24px rgba(102, 126, 234, 0.4);
}
/* Floating Particles */
.particle {
position: absolute;
width: 4px;
height: 4px;
background: rgba(255, 255, 255, 0.6);
border-radius: 50%;
animation: float 6s infinite linear;
}
@keyframes float {
0% {
transform: translateY(100vh) rotate(0deg);
opacity: 0;
}
10% {
opacity: 1;
}
90% {
opacity: 1;
}
100% {
transform: translateY(-100px) rotate(360deg);
opacity: 0;
}
}
</style>
</head>
<body>
<div class="demo-content">
<h1>Dynamic Gradient Banner</h1>
<p>Experience the beauty of dynamic gradients with smooth animations and modern interactions</p>
<button class="demo-btn" onclick="showCookieBanner()">Show Cookie Banner</button>
</div>
<!-- Cookie Banner -->
<div id="gradientCookieBanner" class="gradient-cookie-banner">
<div class="cookie-container">
<div class="cookie-icon">🍪</div>
<div class="cookie-content">
<div class="cookie-title">Cookie Preferences</div>
<div class="cookie-description">
We use cookies to enhance your browsing experience and provide personalized content.
<a href="#" class="cookie-link">Privacy Policy</a> |
<a href="#" class="cookie-link">Cookie Policy</a>
</div>
</div>
<div class="cookie-actions">
<button class="gradient-btn btn-accept" onclick="acceptCookies()">Accept All</button>
<button class="gradient-btn btn-decline" onclick="declineCookies()">Decline</button>
<button class="gradient-btn btn-settings" onclick="openSettings()">Customize</button>
</div>
</div>
</div>
<!-- Settings Modal -->
<div id="cookieSettingsModal" class="cookie-settings-modal">
<div class="settings-content">
<div class="settings-header">
<h3 class="settings-title">Cookie Settings</h3>
<button class="close-btn" onclick="closeSettings()">×</button>
</div>
<div class="cookie-category">
<div class="category-header">
<span class="category-title">Essential Cookies</span>
<div class="gradient-toggle active" data-category="essential">
</div>
</div>
<div class="category-description">
These cookies are necessary for the website to function and cannot be switched off. They are usually only set in response to actions made by you.
</div>
</div>
<div class="cookie-category">
<div class="category-header">
<span class="category-title">Analytics Cookies</span>
<div class="gradient-toggle" data-category="analytics">
</div>
</div>
<div class="category-description">
These cookies help us understand how visitors interact with our website by collecting and reporting information anonymously.
</div>
</div>
<div class="cookie-category">
<div class="category-header">
<span class="category-title">Marketing Cookies</span>
<div class="gradient-toggle" data-category="marketing">
</div>
</div>
<div class="category-description">
These cookies are used to deliver advertisements more relevant to you and your interests based on your browsing behavior.
</div>
</div>
<div class="cookie-category">
<div class="category-header">
<span class="category-title">Functional Cookies</span>
<div class="gradient-toggle" data-category="functional">
</div>
</div>
<div class="category-description">
These cookies enable enhanced functionality and personalization, such as remembering your preferences and settings.
</div>
</div>
<div class="settings-actions">
<button class="gradient-btn btn-decline" onclick="saveSettings(false)">Save Preferences</button>
<button class="gradient-btn btn-accept" onclick="saveSettings(true)">Accept All</button>
</div>
</div>
</div>
<script>
class DynamicGradientCookieBanner {
constructor(options = {}) {
this.options = {
autoShow: true,
showDelay: 1000,
storageKey: 'gradient_cookie_consent',
expiryDays: 365,
enableParticles: true,
particleCount: 20,
onAccept: null,
onDecline: null,
onSettingsSave: null,
...options
};
this.banner = document.getElementById('gradientCookieBanner');
this.modal = document.getElementById('cookieSettingsModal');
this.consent = this.getStoredConsent();
this.init();
}
init() {
if (this.options.autoShow && !this.consent) {
setTimeout(() => this.show(), this.options.showDelay);
}
this.setupEventListeners();
this.loadSettings();
if (this.options.enableParticles) {
this.createParticles();
}
}
setupEventListeners() {
// Toggle switches
document.querySelectorAll('.gradient-toggle').forEach(toggle => {
toggle.addEventListener('click', () => {
if (toggle.dataset.category !== 'essential') {
toggle.classList.toggle('active');
this.animateToggle(toggle);
}
});
});
// Modal backdrop click
this.modal.addEventListener('click', (e) => {
if (e.target === this.modal) {
this.closeSettings();
}
});
// Keyboard navigation
document.addEventListener('keydown', (e) => {
if (e.key === 'Escape') {
this.closeSettings();
}
});
// Button hover effects
document.querySelectorAll('.gradient-btn').forEach(btn => {
btn.addEventListener('mouseenter', () => {
this.createRipple(btn);
});
});
}
animateToggle(toggle) {
toggle.style.transform = 'scale(0.95)';
setTimeout(() => {
toggle.style.transform = 'scale(1)';
}, 150);
}
createRipple(button) {
const ripple = document.createElement('span');
const rect = button.getBoundingClientRect();
const size = Math.max(rect.width, rect.height);
ripple.style.width = ripple.style.height = size + 'px';
ripple.style.left = '50%';
ripple.style.top = '50%';
ripple.style.transform = 'translate(-50%, -50%) scale(0)';
ripple.style.position = 'absolute';
ripple.style.borderRadius = '50%';
ripple.style.background = 'rgba(255, 255, 255, 0.3)';
ripple.style.pointerEvents = 'none';
ripple.style.animation = 'ripple 0.6s ease-out';
button.style.position = 'relative';
button.style.overflow = 'hidden';
button.appendChild(ripple);
setTimeout(() => {
ripple.remove();
}, 600);
}
createParticles() {
for (let i = 0; i < this.options.particleCount; i++) {
setTimeout(() => {
this.createParticle();
}, i * 300);
}
setInterval(() => {
this.createParticle();
}, 2000);
}
createParticle() {
const particle = document.createElement('div');
particle.className = 'particle';
particle.style.left = Math.random() * 100 + '%';
particle.style.animationDelay = Math.random() * 2 + 's';
particle.style.animationDuration = (Math.random() * 3 + 3) + 's';
document.body.appendChild(particle);
setTimeout(() => {
particle.remove();
}, 6000);
}
show() {
this.banner.classList.add('show');
this.animateEntrance();
}
hide() {
this.banner.classList.remove('show');
}
animateEntrance() {
const elements = this.banner.querySelectorAll('.cookie-icon, .cookie-content, .cookie-actions');
elements.forEach((el, index) => {
el.style.opacity = '0';
el.style.transform = 'translateY(20px)';
setTimeout(() => {
el.style.transition = 'all 0.6s cubic-bezier(0.4, 0, 0.2, 1)';
el.style.opacity = '1';
el.style.transform = 'translateY(0)';
}, index * 150);
});
}
accept() {
const consent = {
essential: true,
analytics: true,
marketing: true,
functional: true,
timestamp: Date.now()
};
this.saveConsent(consent);
this.hide();
if (this.options.onAccept) {
this.options.onAccept(consent);
}
}
decline() {
const consent = {
essential: true,
analytics: false,
marketing: false,
functional: false,
timestamp: Date.now()
};
this.saveConsent(consent);
this.hide();
if (this.options.onDecline) {
this.options.onDecline(consent);
}
}
openSettings() {
this.modal.classList.add('show');
document.body.style.overflow = 'hidden';
this.animateModalEntrance();
}
closeSettings() {
this.modal.classList.remove('show');
document.body.style.overflow = '';
}
animateModalEntrance() {
const categories = this.modal.querySelectorAll('.cookie-category');
categories.forEach((category, index) => {
category.style.opacity = '0';
category.style.transform = 'translateX(-20px)';
setTimeout(() => {
category.style.transition = 'all 0.4s cubic-bezier(0.4, 0, 0.2, 1)';
category.style.opacity = '1';
category.style.transform = 'translateX(0)';
}, index * 100);
});
}
saveSettings(acceptAll = false) {
const toggles = document.querySelectorAll('.gradient-toggle');
const consent = { timestamp: Date.now() };
toggles.forEach(toggle => {
const category = toggle.dataset.category;
if (acceptAll) {
consent[category] = true;
toggle.classList.add('active');
} else {
consent[category] = toggle.classList.contains('active');
}
});
this.saveConsent(consent);
this.closeSettings();
this.hide();
if (this.options.onSettingsSave) {
this.options.onSettingsSave(consent);
}
}
loadSettings() {
if (this.consent) {
document.querySelectorAll('.gradient-toggle').forEach(toggle => {
const category = toggle.dataset.category;
if (this.consent[category]) {
toggle.classList.add('active');
} else {
toggle.classList.remove('active');
}
});
}
}
saveConsent(consent) {
const expiryDate = new Date();
expiryDate.setDate(expiryDate.getDate() + this.options.expiryDays);
const consentData = {
...consent,
expiry: expiryDate.getTime()
};
localStorage.setItem(this.options.storageKey, JSON.stringify(consentData));
this.consent = consent;
}
getStoredConsent() {
try {
const stored = localStorage.getItem(this.options.storageKey);
if (stored) {
const data = JSON.parse(stored);
if (data.expiry && Date.now() < data.expiry) {
return data;
} else {
localStorage.removeItem(this.options.storageKey);
}
}
} catch (e) {
console.error('Error reading cookie consent:', e);
}
return null;
}
reset() {
localStorage.removeItem(this.options.storageKey);
this.consent = null;
this.show();
}
getConsent() {
return this.consent;
}
updateGradient(gradient) {
const root = document.documentElement;
root.style.setProperty('--primary-gradient', gradient);
}
setParticles(enabled) {
this.options.enableParticles = enabled;
if (enabled) {
this.createParticles();
} else {
document.querySelectorAll('.particle').forEach(p => p.remove());
}
}
}
// Add ripple animation CSS
const style = document.createElement('style');
style.textContent = `
@keyframes ripple {
to {
transform: translate(-50%, -50%) scale(2);
opacity: 0;
}
}
`;
document.head.appendChild(style);
// Initialize the banner
const cookieBanner = new DynamicGradientCookieBanner({
onAccept: (consent) => {
console.log('Cookies accepted:', consent);
// Initialize analytics, marketing scripts, etc.
},
onDecline: (consent) => {
console.log('Cookies declined:', consent);
// Load only essential scripts
},
onSettingsSave: (consent) => {
console.log('Settings saved:', consent);
// Load scripts based on user preferences
}
});
// Global functions for demo
function showCookieBanner() {
cookieBanner.reset();
}
function acceptCookies() {
cookieBanner.accept();
}
function declineCookies() {
cookieBanner.decline();
}
function openSettings() {
cookieBanner.openSettings();
}
function closeSettings() {
cookieBanner.closeSettings();
}
function saveSettings(acceptAll) {
cookieBanner.saveSettings(acceptAll);
}
</script>
</body>
</html>