How to make a custom header

What do you mean, “done in responsive”. What is “responsive”?

I meant if what is being done in the link which is in Twenty Eleven theme, can be done in the Responsive theme.

thanks,
Albert

Yes, you can pretty much modify any theme however you want. But you’ll need to have a Child Theme set up to do so.

https://codex.www.ads-software.com/Child_Themes

Lucky for you, Responsive Theme has a dedicated support forum here:

https://themeid.com/help/

And Emil also provides a child theme which is available on that site as well.

Mine is in a child theme.

thanks,
Albert