Mobil olanı ekleyin hocam.
<div class="swiper-containerManset">
<div class="swiper-wrapper">
<?php
$args = array(
'showposts' => '15',
'meta_key' => 'ozellikler_manset',
'orderby' => 'DESC',
'meta_value' => ' on ',
'compare' => 'BETWEEN'
);
query_posts($args); if (have_posts()) : while (have_posts()) : the_post(); ?>
<div class="swiper-slide mobilSlider">
<a href="<?php the_permalink(); ?>" title="<?php the_title(); ?>">
<div class="resim1" style="background-image: url(<?php if (has_post_thumbnail()) { $resimyolu = wp_get_attachment_image_src(get_post_thumbnail_id(), 'resim1'); echo $resimyolu[0];} ?>);">
<strong><?php the_title(); ?></strong>
</div>
</a>
</div>
<?php endwhile; ?>
<?php else : ?>
<?php endif; ?>
<?php wp_reset_query(); ?>
</div>
<div class="swiper-pagination"></div>
</div>