offset işler mi acep bunda bilmiyorum

<div class="geneltablo">

<div class="tablocan">
<?php $recent = new WP_Query("showposts=20"); while($recent->have_posts()) : $recent->the_post();?>

<h2><a href="<?php the_permalink() ?>" rel="bookmark" title="<?php the_title_attribute(); ?>"><?php the_title(); ?></a></h2>
    <?php endwhile; ?>
</div>

<div class="tablocan">

<?php $recent = new WP_Query("showposts=20&offset=20"); while($recent->have_posts()) : $recent->the_post();?>

<h2><a href="<?php the_permalink() ?>" rel="bookmark" title="<?php the_title_attribute(); ?>"><?php the_title(); ?></a></h2>
    <?php endwhile; ?>
</div>

<div class="tablocan">
<?php $recent = new WP_Query("showposts=20&offset=40"); while($recent->have_posts()) : $recent->the_post();?>

<h2><a href="<?php the_permalink() ?>" rel="bookmark" title="<?php the_title_attribute(); ?>"><?php the_title(); ?></a></h2>
    <?php endwhile; ?>
</div>
</div>

.geneltablo
{
widht:750px;
padding:0px;
clear;both;
}

.tablocan
{
float:left;
widht:250px;
}

css leri style.css ekle..diğerlerinide oraya ekle bi..ama bilmiyorum offset çalışır mı çalışmaz mı..