I wouldn't really consider it an alternative. It's essentially inline styles. Useful for marketers or authors without coding experience to build pages within a

I wouldn't really consider it an alternative. It's essentially inline styles. Useful for marketers or authors without coding experience to build pages within a restricted CMS (they can't edit all the code, but they can add classes to components). Most of it is not components, though; most classes are just a single CSS property and value. This easily bloats into a maintenance nightmare: <footer class="bg-white black-70 ph3 ph5-ns pv5 pv6-ns bt b--black-10"> ...it's the reason we moved to modular CSS instead of having a style attr on every element. It has its place, but something like Foundation is more appropriately considered an alternative to Bootstrap.