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<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> </head> <body> <p id="myPara">Change the Font Weight of Paragraph in JavaScript</p> <button type="button" onclick="changeStyle()">Click Me</button> <script> function changeStyle(){ var element = document.getElementById("myPara"); element.style.fontWeight = "600"; } </script> </body> </html>
