Update: here’s the work I have done on the framework so far:
Grid structure CSS
Typography CSS
As you can see it’s only basic at the moment, but functional. You can see on the first demo that there is a built-in mobile layout for the grid which kicks in when the browser window is less than 768px wide (resize your browser window to see it in action).
There’s also a couple of scripts running to aid compatibility between browsers, specifically older versions of IE and a script which removes the need to add browser-specific CSS. So everything should look consistent no matter your browser; if it’s not, screencap it and let me know.
(in case you’re wondering, the dotted lines in the background are a baseline grid plugin for helping design the typography; as you can see I haven’t yet put too much thought into it)