CSS for JavaScript Developersby Josh Comeau
Josh Comeau built CSS for JavaScript Developers, an interactive online course combining videos, articles, widgets, and mini-games to help JS developers master CSS. He validated the idea with a one-week pre-order campaign targeting $50k in sales and instead generated $550k in revenue from nearly 5,000 sales. His success came from building in public on Twitter, maintaining a high-quality blog that attracts 60-90k monthly visitors, and leveraging an email list of 20k subscribers.
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