Front and Home templates use transition sections to add featured posts, CTA's, product enticements, etc.
Header
Central container
	Welcome section
	Transition section
	Content section
	Transition section
Footer

THE HTML:
<div id="central-container" class="home-template container">

	<!-- Welcome Section
	============================================= -->
	<?php get_template_part( 'template-parts/top-page-welcome-section',  'welcome-section' ); ?>

	
	<!-- Transition Section
	============================================= -->
	<section id="first-transition-section" class="container">
		<?php get_template_part( 'template-parts/featured-posts',  'featured-posts-section' ); ?>
	</section><!-- #first-transition-section -->


	<!-- Content Section
	============================================= -->
	<section id="page-content" class="container">

		<main id="primary" class="site-main">

				<div id="masonry-container" class="ms-container">

				</div><!-- #masonry-container -->

		</main><!-- #primary -->

		<?php get_sidebar(); ?>

	</section><!-- #page-content-->


	<!-- Transition Section
	============================================= -->
	<section id="second-transition-section" class="container">
	<?php get_template_part( 'template-parts/featured-posts',  'featured-posts-section' ); ?>
	</section><!-- #first-transition-section -->


</div><!-- #central-container -->

<?php
get_footer();




_________________________________________________________________________

Standard page HTML Structure:
Header
Central container
	Welcome section
	Content section
Footer


THE HTML:
get_header();
?>
<div id="central-container" class="page-template section container">

	<!-- Welcome Section
	============================================= -->
	<?php get_template_part( 'template-parts/top-page-welcome-section',  'welcome-section' ); ?>

	<!-- Content Section
	============================================= -->
	<section id="page-content" class="container">

		<main id="primary" class="site-main">

				get_template_part( 'template-parts/content', 'page' );

		</main><!-- #primary -->

	<?php get_sidebar(); ?>

</div><!-- #page-content -->
<?php

get_footer();