Edit The Code:
See Result »
Try it Yourself - ©
w3ii.com
<!DOCTYPE html> <html> <head> <style> #myBtn { position: absolute; } </style> </head> <body> <button type="button" id="myBtn" onclick="myFunction()">Set bottom position to 100 px</button> <script> function myFunction() { document.getElementById("myBtn").style.bottom = "100px"; } </script> </body> </html>