问我怎样才能摆脱那里的退货？

EN

#thumbnail_single {
  float: left;
}
.entry_single {
  padding: 20px;
}

<div id="single">

  <?php if (have_posts()) : while (have_posts()) : the_post(); ?>
  <h2 class="title_single"><a href="<?php the_permalink() ?>"><?php the_title(); ?></a></h2>

  <div id="thumbnail_single">

    <?php if ( has_post_thumbnail() ) : ?>
    <?php the_post_thumbnail(); ?>
    </a>
    <?php endif; ?>

  </div>
  <div class="entry_single">
    <?php the_content(); ?>
  </div>
  <?php endwhile; endif; ?>

</div>
<!-- single -->