Frontend markup for this plugin is very simple:

<div class="da-reactions-container-async" data-type="post" data-id="1" data-nonce="df4c50fc98"></div>

This div is the container for the asynchronous loaded buttons, in this way pages are smaller and easier to load and debug.

The lazy loading function inject inside the previous div something like this:

<div class="da-reactions-container ">
    <div class="reactions-toggle"></div>
    <div class="reactions">
        <div class="reaction reaction_1 inactive" data-id="1" data-reaction="1" data-title="Like" data-type="post">
            <img src="/wp-content/plugins/wp-plugin-da-reactions/public/img/1/like-1.png" alt="Like" width="64" height="64">
            <div class="count">2</div>
        </div>
        <div class="reaction reaction_2 inactive" data-id="1" data-reaction="2" data-title="Love" data-type="post">
            <img src="/wp-content/plugins/wp-plugin-da-reactions/public/img/1/love-2.png" alt="Love" width="64" height="64">
            <div class="count">4</div>
        </div>
        <div class="reaction reaction_3 inactive" data-id="1" data-reaction="3" data-title="Ah Ah" data-type="post">
            <img src="/wp-content/plugins/wp-plugin-da-reactions/public/img/1/ah-ah-3.svg" alt="Ah Ah" width="64" height="64">
            <div class="count">5</div>
        </div>
        <div class="reaction reaction_4 inactive" data-id="1" data-reaction="4" data-title="Wow" data-type="post">
            <img src="/wp-content/plugins/wp-plugin-da-reactions/public/img/1/wow-4.svg" alt="Wow" width="64" height="64">
            <div class="count">6</div>
        </div>
        <div class="reaction reaction_5 inactive" data-id="1" data-reaction="5" data-title="Sad" data-type="post">
            <img src="/wp-content/plugins/wp-plugin-da-reactions/public/img/1/sad-5.svg" alt="Sad" width="64" height="64">
            <div class="count">6</div>
        </div>
        <div class="reaction reaction_6 inactive" data-id="1" data-reaction="6" data-title="Grrr" data-type="post">
            <img src="/wp-content/plugins/wp-plugin-da-reactions/public/img/1/grrr-6.svg" alt="Grrr" width="64" height="64">
        <div class="count">7</div>
    </div>
</div>

The final markup depends on settings and may vary from site to site.