CSS Playground
Live HTML & CSS editor with instant preview.
• Edit HTML and CSS to see instant changes
• Use standard HTML tags and CSS selectors
• Copy Full exports a ready-to-use HTML file
• Reset restores the starter template
What Is CSS Playground?
CSS Playground is a live HTML and CSS editor with instant preview. Write HTML and CSS in separate panels and see the result update as you type - no page refresh needed.
It's useful for testing CSS snippets, learning how HTML and CSS work together, or prototyping components before adding them to your project. Think of it as a sandbox for web development.
How To Use It
Write HTML in the left panel
Start with standard HTML tags like <div>,<h1>, <p>. Add classes to target elements with CSS.
Add CSS in the CSS panel
Write CSS rules targeting your HTML classes or elements. The preview updates automatically - no need to save or refresh.
Copy your code
Use the Copy buttons to grab HTML, CSS, or the full combined HTML file. Paste directly into your project.
What You Can Build
Tips for Better Results
Use classes, not IDs
Classes are reusable and easier to override. IDs should be reserved for unique elements and JavaScript hooks.
/* Good */
.card { }
.button { }
/* Avoid for styling */
#main-card { }Keep CSS organized
Group related styles together. Comment your code if it's complex. Future you (and your teammates) will thank you.
/* Layout */
.container { }
.grid { }
/* Typography */
.heading { }
.body-text { }
/* Components */
.button { }
.card { }Test responsive behavior
Resize your browser window to check how layouts adapt. Use media queries to adjust styles for different screen sizes.
@media (max-width: 768px) {
.container {
padding: 1rem;
}
}Common Questions
Does my code save automatically?
No, the playground runs in your browser. Copy your code before closing the tab, or use your browser's local storage if available.
Can I use JavaScript?
This playground focuses on HTML and CSS only. For JavaScript testing, use a dedicated code playground like CodePen or JSFiddle.
Why does my preview look different from my site?
Different sites have different base styles, resets, and browser defaults. The playground uses minimal defaults. Copy your CSS into your actual project for accurate results.
Is this tool free?
Yes, completely free to use. No sign-up required. Share it with anyone who needs to test HTML and CSS quickly.
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