The above list is non-exhaustive. Skeleton works perfectly with almost all older versions of the browsers above, though IE certainly has large degradation prior to IE9.
Skeleton was built using [Sublime Text 3](http://www.sublimetext.com/3) and designed with [Sketch](http://bohemiancoding.com/sketch). The typeface [Raleway](http://www.google.com/fonts/specimen/Raleway) was created by [Matt McInerney](http://matt.cc/) and [Pablo Impallari](http://www.impallari.com/). Code highlighting by Google's [Prettify library](https://code.google.com/p/google-code-prettify/). Icons in the header of the documentation are all derivative work of icons from [The Noun Project](thenounproject.com). [Feather](http://thenounproject.com/term/feather/22073) by Zach VanDeHey, [Pen](http://thenounproject.com/term/pen/21163) (with cap) by Ed Harrison, [Pen](http://thenounproject.com/term/pen/32847) (with clicker) by Matthew Hall, and [Watch](http://thenounproject.com/term/watch/48015) by Julien Deveaux.