Collab Mode – CodePen

When you embed a Pen, it doesn't have to be a static un-changeable code. If you're PRO, you can check a checkbox and make the editable, meaning they a live auto-updating code editor you can put anywhere you want. It encourages playing around with code, and is great for documentation. https://blog.codepen.io/documentation/pro-features/editable-embeds/?utm_source=twitter&utm_medium=social&utm_campaign=pro | CodePen

Embedded Pens – CodePen