Website: cdpn.io
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https://cdpn.io redirected to https//codepen.io during the time we crawled it. CodePen is a social development environment for front-end designers and developers. It's a platform that allows users to write and share HTML, CSS, and JavaScript code snippets, which are commonly referred to as "pens." These pens can be used to demonstrate concepts, experiment with code, and showcase design and development skills. CodePen provides an interface for writing and previewing code in real-time, making it a valuable tool for learning, collaboration, and building a portfolio. Key Features: 1. **Code Editing:** Users can write and edit HTML, CSS, and JavaScript code directly in the browser. 2. **Live Preview:** Changes to the code are immediately reflected in a live preview, allowing users to see the results of their code in real-time. 3. **Sharing and Embedding:** Users can easily share their pens with others by providing a URL. Pens can also be embedded in websites and blogs. 4. **Collections:** Users can organize their pens into collections, making it easier to showcase related work. 5. **Forking and Remixing:** Other users can fork (create a copy of) and remix (modify) pens, allowing for collaboration and iteration on existing code. 6. **Community and Social Features:** CodePen has a strong community aspect, with features for liking, commenting on, and following other users' work. 7. **Pro Features:** CodePen offers a Pro subscription with additional features, such as private pens, asset hosting, and more customization options. CodePen is widely used by front-end developers, designers, and students to share code examples, experiment with new techniques, and showcase their skills. It's a valuable resource for learning and staying up to date with the latest trends and best practices in web development. The platform's social and collaborative features make it a vibrant and engaging community for those interested in front-end web technologies."