Input
Output
<!DOCTYPE html> <html> <head> <style> .expand-box { width: 150px; height: 150px; background-color: #f06; transition: transform 0.3s ease; margin: 50px auto; } .expand-box:hover { transform: scale(1.2); } </style> </head> <body> <div class="expand-box"></div> </body> </html>