Source Code:
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<!DOCTYPE html> <html> <head> <title>Title of the Document</title> <style> #growing { transition: font-size 5s, color 3s; } </style> </head> <body> <button id="growing">Click on button</button> <script> growing.onclick = function() { this.style.fontSize = '36px'; this.style.color = 'green'; }; </script> </body> </html>
Result:
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