Can't make it work

Author: Ollie-wCreated May 2, 2016Updated Mar 20, 2019

This is my markup in wordpress

<body>
 <div class="main">
    <section>
        <h1><a class="site_title" href="<?php bloginfo('url'); ?>"><?php bloginfo('name') ?></a></h1>
    </section>
    <section>
        <h2>HELLO!!!!!!!</h2>
        <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Assumenda laboriosam maiores nemo nisi voluptatum? Architecto, asperiores cumque dolor ducimus, ex hic illum incidunt laborum molestias necessitatibus praesentium sequi voluptatibus. Repellat?Lorem ipsum dolor sit amet, consectetur adipisicing elit. Aliquid architecto assumenda cumque cupiditate dicta itaque neque, obcaecati perferendis quidem quisquam quos, reiciendis suscipit tenetur ullam ut veniam vitae voluptas voluptatem!</p>
    </section>
 </div>


<script> jQuery(".main").onepage_scroll({
        sectionContainer: "section",     // sectionContainer accepts any kind of selector in case you don't want to use section
        easing: "ease",                  // Easing options accepts the CSS3 easing animation such "ease", "linear", "ease-in",
                                         // "ease-out", "ease-in-out", or even cubic bezier value such as "cubic-bezier(0.175, 0.885, 0.420, 1.310)"
        animationTime: 1000,             // AnimationTime let you define how long each section takes to animate
        pagination: true,                // You can either show or hide the pagination. Toggle true for show, false for hide.
        updateURL: false,                // Toggle this true if you want the URL to be updated automatically when the user scroll to each page.
        beforeMove: function(index) {},  // This option accepts a callback function. The function will be called before the page moves.
        afterMove: function(index) {},   // This option accepts a callback function. The function will be called after the page moves.
        loop: false,                     // You can have the page loop back to the top/bottom when the user navigates at up/down on the first/last page.
        keyboard: true,                  // You can activate the keyboard controls
        responsiveFallback: false,        // You can fallback to normal page scroll by defining the width of the browser in which
        // you want the responsive fallback to be triggered. For example, set this to 600 and whenever
        // the browser's width is less than 600, the fallback will kick in.
        direction: "vertical"            // You can now define the direction of the One Page Scroll animation. Options available are "vertical" and "horizontal". The default value is "vertical".
    });

</script>
</body>

Source: peachananr/onepage-scroll