blog.grink.tech/custom-theme/templates/include/neighbors.html

<div class="pagination">
    {% if article.prev_article %}
    <a class="{% if article.next_article %}w-50{% else %}w-100{% endif %}" href="{{ SITEURL }}/{{ article.prev_article.url }}">
        {% if article.next_article %}&ll; {% endif %}{{ article.prev_article.title }}
    </a>
    {% endif %}
    {% if article.next_article %}
    <a class="{% if article.prev_article %}w-50{% else %}w-100{% endif %} {% if article.prev_article %}text-right{% endif %}" href="{{ SITEURL }}/{{ article.next_article.url }}">
        {{ article.next_article.title }}{% if article.prev_article %} &gg;{% endif %}
    </a>
    {% endif %}
</div>