Change title text color

Site URL: https://www.upcyclepianocraft.com/

My home page hero slider title copy on this page https://www.upcyclepianocraft.com and my title copy on this page https://www.upcyclepianocraft.com/pianos/charter both use the same CSS classification so the home page is white but the white title doesn't show on the /pianos/charter page. How do I make the one black and the one white?

Add to Design > Custom CSS

h2.nested-category-title.nested-category-title-padding {
    color: black !important;
}

Thank you @tuanphan I inserted your code and initially it didn't work. So I stripped out the 'nested-category-title-padding' piece and that seemed to make it work. Thanks again!