Ready. Drag the divider to resize the panels.

HTML Editor Reset

<!DOCTYPE html> <html> <head> <title>My Website</title> <style> body { font-family: Arial; text-align: center; padding: 30px; } button { padding: 10px 18px; cursor: pointer; } </style> </head> <body> <h1>Hello, world!</h1> <p>Resize the preview to test your website.</p> <button onclick="alert('It works!')">Test Button</button> </body> </html>

Live Preview

Width Fit