facetwp basic 3 column responsive grid

<div class="fwp-grid">
    <?php while ( have_posts() ) : the_post(); ?>
        <div class="fwp-grid-col">
            <?php if ( has_post_thumbnail() ) : ?>
                <a href="<?php the_permalink(); ?>" title="<?php the_title_attribute(); ?>"><?php the_post_thumbnail(); ?></a>
            <?php endif; ?>
            <?php the_title( '<h3><a href="' . esc_url( get_the_permalink() ) . '">', '</a></h3>' ); ?>
        </div>
    <?php endwhile; ?>
</div>