<?php
/*
Template Name: Test
*/

$args = array(
    'cat' => 12,
    'orderby' => 'date',
    'order' => 'DESC',
    'paged' => get_query_var( 'paged' )
);

$myposts = new WP_Query($args);
?>
<?php if ( $myposts->have_posts() ) :
    while ( $myposts->have_posts() ) : $myposts->the_post(); ?>

        <h1><?php the_title(); ?></h1>
        Inserisci qui contenuto, categorie, tag, ecc.

    <?php endwhile; ?>

    <?php next_posts_link( 'Pagina precedente', $myposts->max_num_pages );?>
    <?php previous_posts_link( 'Pagina successiva', $myposts->max_num_pages );?>

<?php endif; ?>

<?php wp_reset_query(); ?>