Menu separator Blockshop

[phimanim]

Hi,

I am on Blockshop theme and I'd like to add a thin line at the bottom of the menu. To separate a white background menu from the background page. I can't find the right css to right.

Thank you,

Imane

[KetanKumar]

@phimanim 

Sorry you are facing this issue, it would be my pleasure to help you.

Welcome to the Shopify community!😊
Thanks for your good question.

Please share your site URL,
I will check out the issue and provide you a solution here.