Dive into OOCSS principles
OOCSS - what it is, what it does, what it is, what it isn't.
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Optimize selectors, CSS vs. JS
Short round up of best practices for selectors use in CSS and Javascript. What is sauce for the goose is not necessarily sauce for the gander.
ReadTired of Bootstrap? Discover inuit.css!
inuit.css is a a powerful, scalable, BEM, OOCSS framework which doesn't impose you a design.
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