<div class="container">
<?php if ( have_posts() ) : ?>
<?php while ( have_posts() ) : the_post(); ?>
<div class="col-xs-8 col-xs-push-2 col-sm-6 col-sm-push-0 col-md-6 col-lg-4">
<div class="thumbnail">
<?php
if ( function_exists( 'add_theme_support' ) )
the_post_thumbnail( array(250,9999), array('class' => 'img-polaroid') );
?>
<div class="caption">
<h4><?php the_title(); ?></h4>
<p class="date"><?php the_time('d.m.Y'); ?></p>
<p><?php the_excerpt(); ?></p>
<p><a href="<?php the_permalink(); ?>" class="btn btn-default" role="button">Read more</a></p>
</div>
</div>
</div>
<?php endwhile; ?>
<?php else : ?>
<?php endif; ?>
</div>