How to make fixed navigation for Dazzling theme?

as I can leave the set menu to descend down and he always appearing?

This question have been answered several times on this forum before, so I hope you don’t mind that I will point you to those discussions. Some of these discussions are available here and here.

Hi, I did everything indicated in the links you shared with us, the menu is fixed at the top of page however the background color of the pages changes tking the same background color of the menu.

Hello there,

I hope you are doing well today.

I have had a look at your website, http://www.tech-brain.us/ and the background color of the page appears to be white.
Is this the correct website to inspect or are you using another?

Best Regards,
Support