Input
Output
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Simple Div Styling</title> <style> div { width: 300px; height: 200px; font-size: 16px; margin: 10px; background-color: lightblue; display: flex; align-items: center; justify-content: center; border: 2px solid #0077cc; } </style> </head> <body> <div> This is a 300x200 div with font size 16px and margin 10px. </div> </body> </html>