how to make button in parallax section transparent ?

How to make button in parallax section transparent with out importing the demo content because now i cant import demo content please tell me how to do it ?

here is my website url: www.grinskart.com

Hi @ethann,

I hope you are well today and thank you for your question.

I visited your shared site and found the button is already transparent as shown in the attached screenshot.

Please advise.

Best Regards,
Movin