How to properly use css-values viewport-relative-lengths?
问题 As per Is there a way to up-size the font with CSS to fit the screen?, it's possible to use css3-values/#viewport-relative-lengths (dev3, dev), vw , vh , vmin , vmax , to make the document more fluid. However, coming from the conservative side, I'd like to ensure that my desire to fit the screen on larger displays doesn't do harm on smaller ones. I know that with <meta name = 'viewport' content = 'width = device-width' /> and the implicit font-size: 1em; , I'm supposed to be guaranteed that