<article class="scroller">
    <section>
        <h2>Section one</h2>
    </section>
    <section>
        <h2>Section two</h2>
    </section>
    <section>
        <h2>Section three</h2>
    </section>
</article>
    

<style>
.scroller {
    height: 300px;
    overflow-y: scroll;
    scroll-snap-type: y mandatory;
}

.scroller section {
    scroll-snap-align: start;
}
</style>