What do mean by “build” font stacks?
If you have an existing font stack you can paste it into the font stack builder to see the probability that each of the specified fonts will be displayed in people’s browsers. From there you can add more fonts to the stack with the selectors alongside the Add font families button, hence you “build” the stack. The process of building a font stack is to specify a set of similar-looking fonts and adjust the sequence such that your preferred fonts are displayed where available, and fallback to reasonable alternatives if not. You should aim to have good coverage for fonts that are typically installed on each of the three main operating systems. When you declare a font stack it suggests the fonts a Web browser should use to display the text on the page, it does not install the fonts on your computer. The CSS @font-face rule can be used to deliver a font to the end user for display but strict license terms apply to its use with commercial fonts. The font offered in the @font-face rule is not
If you have an existing font stack you can paste it into the font stack builder to see the probability that each of the specified fonts will be displayed in people’s browsers. From there you can add more fonts to the stack with the selectors alongside the Add font families button, hence you “build” the stack. The process of building a font stack is to specify a set of similar-looking fonts and adjust the sequence such that your preferred fonts are displayed where available, and fallback to reasonable alternatives if not. You should aim to have good coverage for fonts that are typically installed on each of the three main operating systems. When you declare a font stack it suggests the fonts a Web browser should use to display the text on the page, it does not install the fonts on your computer. The CSS @font-face rule can be used to deliver a font to the end user for display but strict license terms apply to its use with commercial fonts. The font offered in the @font-face rule is not
