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seanpm2001 / 404Day_Website

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4️⃣️0️⃣️4️⃣️🌐️ The official source repository for the 404Day website. 404 Day (HTTP 404, day not found) is a technical holiday starting 2021, April 4th (4.04) that celebrates hyperlinks, and raisess awareness on Link rot (Hyperlink celebration day, Link Rot Awareness day)

website gplv3 holiday http-404 hyperlinks 404 gpl3 css-language link-rot http404 404day 404-day css-lang seanpm2001-web 404day-project 404day-development 404day-website 404-day-website technical-holiday
  • Updated Oct 2, 2025
  • CSS

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