It seems that not many people try to do this, I think, but it works, and it works great, as far as I can tell.
CodeIgniter works well with the structure, and you can integrate HTML5 BP to render your pages in HTML5 style, with several javascript libraries such as Initialzr modernizer to help with resource loading. CodeIgniter is pretty fast, and when combining CI with HTML5 BP there is a lot of null conflict, which makes it a pretty quick and painless add-on.
Twitter Bootstrap works fine, as it is mainly CSS and javascript plugins for components that you can combine with the plugins.js HTML5 file if you want / need it. I would say that after playing with Twitter Bootstrap is not really necessary, but it helps you quickly build a responsive interface. Not sure if there are other packages out there that could be better.
carlinyuen
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