index.php

<?php  get_header(); ?>

     <div class="container mb-4">
         <div class="row justify-content-center">
              <div class="col-md-8">
                   <blockquote class="subtitulo text-center pl-3">
                         <?php
                              $id_blog = get_option('page_for_posts');
                              echo get_post_meta($id_blog, 'edc_blog_slogan_blog', true);
                         ?>
                   </blockquote>
              </div>
         </div>
    </div>

<div class="container">
     <div class="row">
          <main class="col-lg-9 col-md-8">
               <h1 class="separador text-center mb-3">Nuestro Blog</h1>

               <?php while(have_posts()): the_post(); ?>

                    <div class="row entrada mb-4">
                         <div class="col-md-4">
                              <?php the_post_thumbnail('mediano', array('class' => 'img-fluid' ) ); ?>
                         </div>
                         <div class="col-md-8">
                              <div class="contenido-entrada pt-4 pt-md-0">
                                   <a href="<?php the_permalink(); ?>">
                                        <h3><?php the_title(); ?></h3>
                                   </a>
                                   <!-- Información Meta de la entrada -->
                                   <?php get_template_part('template-parts/meta', 'post'); ?>

                                   <p><?php the_excerpt(); ?></p>
                                   <a href="<?php the_permalink(); ?>" class="btn btn-primary text-light">Ver Entrada</a>
                              </div><!--.contenido-entrada-->
                         </div>
                    </div><!--.row-->
               <?php endwhile; ?>

               <ul class="pagination pagination-lg justify-content-center mt-5">
                    <li class="page-item">
                         <?php
                              previous_posts_link('
                                   <span class="page-link" aria-hidden="true">&laquo; Anteriores </span>
                                   <span class="sr-only">Anteriores</span>
                              ');
                         ?>
                    </li>

                    <li class="page-item">
                         <?php
                              next_posts_link('
                                   <span class="page-link" aria-hidden="true">Siguiente &raquo;</span>
                                   <span class="sr-only">Siguientes</span>
                              ');
                         ?>
                    </li>
               </ul>
          </main>

          <?php get_sidebar(); ?>
     </div>
</div>

<?php  get_footer(); ?>