使Bootsrap导航栏中的文字响应

I asked this question yesterday about how to make my navbar menu change from horizontal to vertically stacked depending on layout but now I notice when I make my text suitable for my large monitor it doesnt work when I shrink the window down. Is there a way I can make my text more responsive? if not do you have another menu approach? Also how can I center the Menu buttons when horizontal? yesterday about how to ma