Free Online CSS Playground - Live HTML & CSS Editor
Write HTML and CSS and see a live preview instantly. Experiment with layouts, animations, and styles in a free online CSS playground. No setup required.
What is a CSS Playground?
A CSS Playground is an interactive browser-based editor where you can write HTML and CSS and immediately see the rendered result in a live preview pane. It is perfect for experimenting with layouts, testing CSS animations, learning new properties, or quickly prototyping UI components without setting up a local development environment.
How to Use the CSS Playground
- Write or paste your HTML markup in the HTML tab on the left panel.
- Switch to the CSS tab and add your styles — the preview updates in real time.
- Use the Load Template button to start from a ready-made example such as Flexbox, Grid, or CSS Animation.
- Click Copy HTML or Copy CSS to grab the code, or Reset to start fresh.
CSS Playground Features
- Real-time live preview — changes reflected instantly as you type
- Separate HTML and CSS editors with monospace font for readability
- 5 built-in templates covering Card, Flexbox, Grid, Buttons, and Animations
- Resizable split-panel layout — drag the divider to adjust editor vs preview width
- Copy HTML and CSS independently to clipboard with one click
CSS Playground FAQ
Can I use JavaScript in the playground?
The playground focuses on HTML and CSS. While basic inline event attributes may work, JavaScript execution is limited intentionally to keep the tool safe and focused on styling.
Are external CSS libraries like Bootstrap supported?
You can link external stylesheets via a <link> tag in the HTML panel, as long as the CDN supports cross-origin requests. For example, adding Bootstrap's CDN link in a <head> block works fine.
Is my code saved between sessions?
The playground does not persist code between page loads. Copy your HTML and CSS before leaving if you want to save your work.