Example FSE template html file

template.html

<!-- wp:template-part {"slug":"header","tagName":"header"} /-->

<!-- wp:group {"tagName":"main","layout":{"type":"constrained"}} -->
<main class="wp-block-group">
	<!-- wp:group {"align":"full","style":{"spacing":{"padding":{"top":"var:preset|spacing|60","bottom":"var:preset|spacing|60"}}},"backgroundColor":"base","textColor":"contrast","layout":{"type":"constrained"}} -->
	<div class="wp-block-group alignfull has-contrast-color has-base-background-color has-text-color has-background" style="padding-top:var(--wp--preset--spacing--60);padding-bottom:var(--wp--preset--spacing--60)">
		<!-- wp:heading {"textAlign":"center","level":1,"style":{"typography":{"fontStyle":"normal","fontWeight":"700"}}} -->
		<h1 class="wp-block-heading has-text-align-center" style="font-style:normal;font-weight:700"><?php echo esc_html__( 'Welcome to Our Platform', 'your-theme-textdomain' ); ?></h1>
		<!-- /wp:heading -->

		<!-- wp:paragraph {"align":"center","fontSize":"large"} -->
		<p class="has-text-align-center has-large-font-size"><?php echo wp_kses_post( __( 'Discover the <strong>best solutions</strong> for your business needs', 'your-theme-textdomain' ) ); ?></p>
		<!-- /wp:paragraph -->

		<!-- wp:buttons {"layout":{"type":"flex","justifyContent":"center"}} -->
		<div class="wp-block-buttons">
			<!-- wp:button {"backgroundColor":"contrast","textColor":"base"} -->
			<div class="wp-block-button">
				<a class="wp-block-button__link has-base-color has-contrast-background-color has-text-color has-background wp-element-button" href="#contact"><?php echo esc_html( __( 'Get Started', 'your-theme-textdomain' ) ); ?></a>
			</div>
			<!-- /wp:button -->
		</div>
		<!-- /wp:buttons -->
	</div>
	<!-- /wp:group -->

	<!-- wp:columns {"align":"wide","style":{"spacing":{"blockGap":{"top":"var:preset|spacing|40","left":"var:preset|spacing|40"}}}} -->
	<div class="wp-block-columns alignwide">
		<!-- wp:column -->
		<div class="wp-block-column">
			<!-- wp:heading {"level":3} -->
			<h3 class="wp-block-heading"><?php echo esc_html__( 'Feature One', 'your-theme-textdomain' ); ?></h3>
			<!-- /wp:heading -->

			<!-- wp:paragraph -->
			<p><?php echo esc_html__( 'Description of your first amazing feature goes here.', 'your-theme-textdomain' ); ?></p>
			<!-- /wp:paragraph -->
		</div>
		<!-- /wp:column -->

		<!-- wp:column -->
		<div class="wp-block-column">
			<!-- wp:heading {"level":3} -->
			<h3 class="wp-block-heading"><?php echo esc_html__( 'Feature Two', 'your-theme-textdomain' ); ?></h3>
			<!-- /wp:heading -->

			<!-- wp:paragraph -->
			<p><?php echo esc_html__( 'Description of your second amazing feature goes here.', 'your-theme-textdomain' ); ?></p>
			<!-- /wp:paragraph -->
		</div>
		<!-- /wp:column -->
	</div>
	<!-- /wp:columns -->
</main>
<!-- /wp:group -->

<!-- wp:template-part {"slug":"footer","tagName":"footer"} /-->