Use PHP's alternative syntax for clearer WordPress templates. For more info see https://philkurth.com.au/tips/use-php's-alternative-syntax-for-clearer-wordpress-templates/

php-alternative-syntax-example.php

<?php

get_header();
?>
<div class="Main">

	<?php if ( have_posts() ): ?>
		<?php while ( have_posts() ): ?>
			<?php the_post(); ?>
            
			<div class="Post">
				…
			</div>
            
		<?php endwhile; ?>
	<?php endif; ?>

</div>
<?php
get_footer();