<div class="container-news visible-992">

    <?php
      $odd = true;
      if ( have_posts() ) : while ( have_posts() ) : the_post();

      $thumbnail_url = wp_get_attachment_url( get_post_thumbnail_id($post->ID) );

      if($odd) {


    ?>

    <a href="<?php the_permalink(); ?>">
    <article class="news odd col-md-6">
      <div class="row">

        <div class="thumbnail-news col-sm-6" style="background-image: url(<?php echo $thumbnail_url ?>);">

        </div>
        <div class="content-news col-sm-6 valign-container">
          <div class="v-align">
            <h2 class="titre-news"><?php the_title(); ?></h2>
            <span class="date-news">29/05/2016</span>

            <hr>

            <p class="extrait-news">
              Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.
            </p>
          </div>
        </div>
      </div>
    </article>
    </a>

    <?php } else { ?>

      <a href="<?php the_permalink(); ?>">
      <article class="news even col-md-6">
        <div class="row">

          <div class="thumbnail-news col-sm-6" style="background-image: url(<?php echo $thumbnail_url ?>);">

          </div>
          <div class="content-news col-sm-6 valign-container">
            <div class="v-align">
              <h2 class="titre-news"><?php the_title(); ?></h2>
              <span class="date-news">29/05/2016</span>

              <hr>

              <p class="extrait-news">
                Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.
              </p>
            </div>
          </div>
        </div>
      </article>
      </a>
    <?php }
    $odd = !$odd
     ?>

    <?php endwhile; else: ?>
    <p><?php _e('Sorry, no posts matched your criteria.'); ?></p>
    <?php endif; ?>

    </div>