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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.
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Write | Build | Compile or Share your Python code online – An online Python’s compiler and editor by 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.
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.
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.
Keep your files on CodePen for easy access and management. Optimize and edit images, and edit code without switching to another editor.
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When your code is rendered as a preview on CodePen, it is ultimately in an HTML template like this: <!DOCTYPE html> <html lang="en" {IF CLASSES}class="classes"{/IF}> <head> <meta charset="UTF-8"> {IF PRIVATE} <meta name="robots" content="noindex"> {ELSE} <!--
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