<header class="post-header" style="margin-bottom:25px;">
<?php
$cate_name = get_the_category(get_the_ID());
$catename = $cate_name[0]->cat_name;
?>
  <p><?php the_title(); ?></p>
  <p><?php echo $catename ?></p>
  <time class="post-time" datetime="><?php the_time("Y-m-d"); ?>"><?php the_time("F d, Y"); ?></time>
  <div class="post-image"> 
   <?php if (! has_post_thumbnail() ) { echo ''; } ?>
   <?php if ( has_post_thumbnail() ) {
      the_post_thumbnail('full');
   }?>
</header>
<p class="post_desc"><?php the_content(); ?></p>