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<!DOCTYPE html> <html> <head> <style> div { width: 100px; height: 100px; background: red; position: relative; animation: mymove 5s infinite; } @keyframes mymove { from {top: 0px;} to {top: 200px;} } </style> </head> <body> <h1>The @keyframes Rule</h1> <div></div> </body> </html>