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<!DOCTYPE html> <html lang="en"> <head> <style> #myElement { border:1px solid #CCC; width:100px; height:100px; } </style> <meta charset="utf-8"> </head> <body> <h2>Change Height of HTML Element in JavaScript</h2> <div id="myElement">Hello World!</div> <br> <button type="button" onclick="changeStyle()">Click Me</button> <script> function changeStyle(){ var element = document.getElementById("myElement"); element.style.height = "150px"; } </script> </body> </html>
