The @keyframes at-rule sets the value of properties at different points during an animation, so instead of defining how each property should behave at each frame of an animation, we set its keyframes, and CSS will figure out (i.e., interpolate) the values between them.
CodePen Projects offers two preprocessing languages that can do HTML includes: Pug and Nunjucks. In Pug, you use include file.pug (where `file.pug` is the file path to any other Pug file) and it will grab that file and include it. This makes it easy to piece together parts of files into complete HTML documents, making multi-page sites much easier.
Codepen is for simple stuff, the editor is bad, it doesn’t have auto-complete or format on save. I personally use visual studio code to do all my projects and just copy-paste into codepen to get a quick url to insert into my project challenges.
Codepen projects are a new interface that allow for things like separating JavaScript into separate files and using complex build systems. A pen is much simpler, providing just one spot for HTML, CSS, and JavaScript each.
I’m utterly behind in learning about scroll-driven animations apart from the “reading progress bar” experiments all over CodePen. Well, I’m not exactly “green” on the topic; we’ve published a handful of articles on it including this neat-o one by Lee Meyer published the other week. Our “oldest” article about the feature is by Bramus, dated back to July 2021. We were calling ...
If codepen is still having issues, then you can use the export button to get the code you have already written and use another source like codesandbox.
More big news this week: We've launched CodePen into a public beta! It's a site for building stuff from HTML, CSS and JavaScript. Perhaps for yourself to
