CSS Scroll Snap: Building Carousels Without JavaScript

Scroll snap lets you build image carousels, full-page sections, and swipeable galleries using pure CSS scrolling — no JavaScript carousel library, no custom touch event handling.

.carousel {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    gap: 1rem;
}

.carousel-item {
    flex: 0 0 100%;
    scroll-snap-align: center;
}

/* Full-page scroll sections */
.sections-container {
    height: 100vh;
    overflow-y: scroll;
    scroll-snap-type: y mandatory;
}
.section {
    height: 100vh;
    scroll-snap-align: start;
}

Scroll snap uses the browser’s own native scrolling physics, which means it inherits accessible keyboard and touch scrolling behavior for free — something JavaScript carousel libraries have historically struggled to replicate perfectly, especially for keyboard and screen reader users.