In this post, we'll explore scenarios where combining CSS animations with JavaScript adds interactivity that can't be achieved with CSS alone. By using JavaScript, you can trigger animations based on user actions, such as clicks, scrolls, or other events.

1. Scroll-Triggered Animations

Learn how to create animations that trigger when an element enters the viewport using the Intersection Observer API.

const observer = new IntersectionObserver(entries => { entries.forEach(entry => { if (entry.isIntersecting) { entry.target.classList.add('animate'); } }); }); observer.observe(document.querySelector('.element'));

This snippet triggers an animation when an element comes into view.

2. Hover and Click-Based Animations

Discover how you can use JavaScript to apply classes dynamically based on hover or click events, adding logic to animations that go beyond simple CSS hover effects.