css - tailwindcss not using bg-white inside md breakpoint

Question

I am wondering why tailwindcss is not using my md:bg-white when the screen size is between md and lg.

<div className={`h-12 bg-blue flex w-full text-white fixed mt-1 lg:bg-white md:bg-white ${scrolling ? 'md:animationNav  md:h-16' : 'md:animationBasisNav md:h-20'} md:dark:bg-gray-400`}>
</div>

question from:https://stackoverflow.com/questions/65887466/tailwindcss-not-using-bg-white-inside-md-breakpoint

Answer 1

Waitting for answers