cartimize/footer_html.php

## footer_html.php
<?php

add_action('cartimize_after_footer', 'cartimize_custom_short_code_checkout_main_container_start');

function cartimize_custom_short_code_checkout_main_container_start(){
    echo "<div>Sample</div>";
}
	<?php

	add_action('cartimize_after_footer', 'cartimize_custom_short_code_checkout_main_container_start');

	function cartimize_custom_short_code_checkout_main_container_start(){
	echo "<div>Sample</div>";
	}