Using CSS on the Basic Package

Site URL: https://www.thebritishadventure.co.uk

Good evening all,

When I was putting together my website, I was unaware that that certain aspects of CSS are restricted to the more expensive subscriptions. Whereas in my trial period I was able to use the following bit of code I'd found on the forums:
 

Quote

<style>
   .page-section:first-child {
     padding-top: 0!important;
   }
</style>

To have the gallery on my home page appear as a whole-page image; without access to the CSS specifically for the header, I am left with a blank header followed by a sliding gallery underneath.

It seems a bit extreme to pay an additional £80 just to remove this blank section at the top of the home page - is there any way of achieving my goals without a Business+ subscription?

Thank you kindly,

Ken