i could't find the index file................ where all css are linked.
CSS files are inserted by code. If you want to insert an additonal file you would need your own theme or a plugin. The same goes for removing a css file. If you specify what exactly you try to achieve we can give better advice.
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CSS files are inserted by code. If you want to insert an additonal file you would need your own theme or a plugin. The same goes for removing a css file. If you specify what exactly you try to achieve we can give better advice.