What is the performance impact of the universal selector?

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In modern browsers the performance impact is negligible, provided you don’t apply slow-effects to every element (eg. box-shadow, z-axis rotation). The myth that the universal-selector is slow is a hangover from ten years ago when it was slow.

Reference: http://www.kendoui.com/blogs/teamblog/posts/12-09-28/css_tip_star_selector_not_that_bad.aspx

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