In my website's CSS file are defined many styles, which I don't use in HTML code and CSS file is very big. I want to delete not-used styles, but it's very hard to find them. Does anybody know any tool, which can for example analyze website's code, find all used styles in CSS file and delete styles not called in website's HTML code?
You could try the firefox addon dust-me selectors: https://addons.mozilla.org/en-US/firefox/addon/5392 I haven't tried it myself yet, but it sounds good.