How to add custom code to the site-wide header?

Site URL: https://www.sugardaisyboutique.com/

Hi there, can someone help me with adding a custom code to my site-wide header?

I have a shopping cart from a separate eCom provider (my POS system) that I want to integrate into the site. The code is: <div class='ec-cart-widget'></div>

I'd like it to ideally be up where the button, or social icons are... But I'm unsure how to get it there. I have attached a screenshot of the directions I've been given from my POS, as well as a screenshot of where I'd like it to appear.

Can someone help me?

Thank you!

Hi. What is password?

Password to view site is ready2go

On 4/28/2021 at 6:43 PM, SugarDaisy said:

Password to view site is ready2go

Add to Settings > Advanced > Code injection > Footer

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script>
$(document).ready(function() { 
		$('<div class="ec-cart-widget"></div>').insertBefore('.header-display-desktop .header-actions-action');
	});
</script>