Sub-Menu Dropdown Menu Disappearing Behind Section

Hello:

I am having an issue with the sub-menu drop-down disappearing behind other sections of the page.

www.ProspectiveTax.com

You can see if you hover over "Services"

I am using Joomla 3.8.10 and also SP Page builder. The default edited template is Prostar. I have edited it with SP Page Builder.

Just bought, downloaded, installed the most current versions of CK Menu, CK Params & CK Mobile.

Please see attached images too for example.

I need the menu to render and appear on top and not disappear behind.

Can anyone please provide guidance or advice?

Thank you for your help.

Hi
this is because of your html structure, you can fix this by adding this css in your page

but this is more a problem related to SP page builder
CEd

Thank you for your help.

To confirm, I should add that code to the template.css file? And then should work okay?

Sorry to bother you with this, but I do not code and just want to confirm my steps.

Thank you.

yes you must add it into a custom css file into your template