Custom Single Page for Categories

There are many ways this can be done. Here is a quick one. Copy single.php to your child theme. Change the .entry-header div as follows:

	<header class="entry-header <?php if ( in_category( '7' ) ) { echo "custom-cat"; } ?>">
		<div class="container">
			<h1 class="entry-title"><?php echo get_the_title(); ?></h1><?php ultra_breadcrumb(); ?>
		</div><!-- .container -->
	</header><!-- .entry-header -->

We’ve added: <?php if ( in_category( '7' ) ) { echo "custom-cat"; } ?>

Next, wrap the entry-meta div in a conditional:

	<?php if ( ! in_category( '7' ) ) : ?>
	<div class="entry-meta">
		<div class="container">
			<div>
				<?php ultra_posted_on(); ?>
			</div>
		</div><!-- .container -->	
	</div><!-- .entry-meta -->
	<?php endif; ?>

In both cases, replace the category ID 7 with yours.

Finally, in the style.css file of your child theme or in a Custom CSS plugin, insert:

.single .entry-header.custom-cat {
	margin-bottom: 2.67857em;
}