customwpquery.php

<div class="col-md-12" id="col-md-12-videospage">
<?php
$portfolio_query = new WP_Query(array(
	'category_name' => 'portfolio',
	'order' => 'DESC',
	'posts_per_page' => '9',
	'paged' => $paged
))
?>
<!-- First Blog Post -->
<?php  if($portfolio_query->have_posts()) : while ($portfolio_query->have_posts()) : $portfolio_query->the_post(); ?>
<div class="col-md-4" id="col-md-12-videospage">
<article>
<?php if(has_post_thumbnail()) : ?>
<a href="<?php the_permalink(); ?>" class="thumbnail">
<?php the_post_thumbnail(); ?>
</a><?php endif; ?>
<a href="<?php the_permalink(); ?>"><h4 id="h4enpagevideosandpageportfolio"><?php the_title();?></h4></a>
</article>
</div>
<?php endwhile; ?>
<?php else : ?>
<div class="alert alert-danger text-center"><p>Ningun video encontrado</p></div>
<?php endif; ?>
</div>
</div>
<!-- Pager -->
<div class="clearfix"></div>
<ul class="pager">
<li><?php next_posts_link( 'Older', $portfolio_query->max_num_pages); ?></li>
<li><?php previous_posts_link( 'Newer'); ?></li>
</ul>