fixing the top navi bar when screen size becomes smaller

Hello,

Very nice theme – thanks.

I would like to keep the top navi bar at the top when the page scrolls down for smaller sized screens too.

At the moment it is fixed for > 1024 approx, but the CSS changes for lower screen sizes.

I have been able to make it stick for lower screens but that messes with the site title position with half of it being hidden beneath the top navi bar.

Is there a simple fix for this?

Thanks