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Company/Startup Blogs

CodePen

6 itemsVisit site ↗

Tuesday, 10 November 2026

  • CodePenCompany/Startup Blogs1 min read

    448: CSS Modules is Cool Again

    Shaw and Chris talk CSS Modules, a rather old bit of technology in the CSS-in-JS category. CodePen now supports them, which took a little work because the way they process code is a smidge unusual. We use CodePen Modules (with Sass!) here at CodePen so we knew we wanted to support them, but we got […]

Saturday, 7 November 2026

  • CodePenCompany/Startup Blogs1 min read

    447: WebMCP Rules (and We Already Have It)

    Chris & Shaw are chatting this week about the newfangled web technology, WebMCP. It involves new browser APIs like document.modelContext, meaning it needs to be a web standard, and that process is chugging along, but certainly not a done deal. That said, CodePen already has it conditionally implemented for browsers that support it, so you […]

Monday, 2 November 2026

  • CodePenCompany/Startup Blogs2 min read

    Chris’ Corner: Doin’ Stuff in CSS

    The float property in CSS is old school. CSS developers used to have to think about it all the time, because it was one of the mechanisms we had for building actual layouts like side-by-side columns and stuff. Those days are gone, but it doesn’t mean float as a property is entirely dead. It remains […]

Friday, 30 October 2026

  • CodePenCompany/Startup Blogs1 min read

    446: Our Next-Generation of Feeds is Here

    CodePen has “feeds” for exploring content, like our Trending feed for showing off what’s popular lately all across CodePen, and our Following feed showing off the work of people you’ve chosen to follow on CodePen. Both of those require some fairly fancy technology to pull off! We’ve pulled this tech in-house, so we have more […]

Wednesday, 21 October 2026

  • CodePenCompany/Startup Blogs1 min read

    Chris’ Corner: We Heart CSS

    It warms my old heart to hear Jason Santa Maria wax poetic about modern CSS: CSS has exploded! Flexbox, grid, many kinds of viewport units, variables, and on and on. So many things we used to patch in to extend CSS or turn to Javascript for are now just part of the spec. The ease […]

Tuesday, 20 October 2026

  • CodePenCompany/Startup Blogs1 min read

    445: CodePen AI is Here

    Chris and Alex are talking this week about CodePen’s biggest release since the 2.0 drop. It’s live! We’ll be working on CodePen AI forever, since it’s a fast-changing technology that regularly adds new abilities. That sounds like a trite thing to say, but we lived it as we were building this. We started out playing […]

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Updated 14 November 2026 at 14:01