Remove H2 on page

[mactech]

Hello, I would like to remove the <h2 headers from the subtitles of the window that appears after clicking add to cart. <h2> Product added to cart </h2> </h2> 9 products (s) in the cart. </h2> <h2> Customers who bought this product also bought: </h2> In which file can I do this https: //nuki.pl/lozka-i-wezglowia/lozko-dream-szare-p.html

Edited March 20, 2020 by mactech (see edit history)