I get a little giddy when I come across perfect uses for :nth-child or :nth-of-type (read about the difference). The better you understand them, the more css nerdgasms you get to have!
This awesome code ( Useful :nth-child Recipes ) is write by Shaz3e, you can se more from this user in the personal repository
You can find the original code on Codepen.io
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