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Build, share, and learn JavaScript, CSS, and HTML with our online code editor. CodePen doesn't work very well without JavaScript. We're all for progressive enhancement, but CodePen is a bit unique in that it's all about writing and showing front end code, including JavaScript.
The Project Editor enables you to build web development projects online and share them instantly. Find out more. Upgrade to Pro
In CodePen, whatever you write in the HTML editor is what goes within the <body> tags in a basic HTML5 template. So you don't have access to higher-up elements like the <html> tag. If you want to add classes there that can affect the whole document, this is the place to do it.
Project Editor. Multiple files and folders. Your own file system to work with. The Editor View of your project is where the work happens! In Editor View, you can set up your Project settings, write your code, and preview your project as you build it.
You might say the Pen Editor is the most important page on CodePen! This is the place you actually write the code to make Pens. The standard editor is HTML, CSS, and JavaScript.
Editor View is the main view of a Pen on CodePen. It contains: The HTML editor; The CSS editor; The JS editor; The Live Preview; Pen Settings; You can create, edit, and save Pens from here. It’s kind of the heart-and-soul of CodePen! There are a variety of other things you can do from the editor as well, like: Delete the Pen
Nov 1, 2021 · CodePen is a popular online code editor used by many developers around the world. It is also one of the recommended editors you can use for the freeCodeCamp curriculum. CodePen is only for frontend projects and supports HTML, CSS, and JavaScript.
CodePen is a social development environment for front-end designers and developers. Build and deploy a website, show off your work, build test cases to learn and debug, and find inspiration. We call them Pens. Write HTML, CSS, and JavaScript and get a real-time preview. You can use CodePen to: Show off the amazing things you build.
CodePen is an online community for testing and showcasing user-created HTML, CSS and JavaScript code snippets. It functions as an online code editor and open-source learning environment, where developers can create code snippets, called "pens," and test them.
May 13, 2020 · CodePen.io is an online code editor that allows you to develop in an open-source environment. You create 'pens' which display a live-preview as you code which is great for testing out bugs, collaborating and discovering the latest design patterns.
