try changing position:relative;z-index:1
your problem is with css,not JS
position:relative; is not going to work.
The code originally posted is working for me. Are you sure that code is being run?
send the website,then we can see what's the problem.
I usually use parentElement
document.body.parentElement.appendChild(button);
How to Add a Button on Top of Website without Overlaying Another Element?
How to Add a Button on Top of Website without Overlaying Another Element?
I have tried this script, but no luck
var button = document.createElement("Button"); button.innerHTML = "Title"; button.style = "top:0;right:0;position:absolute;z-index:99999;padding:20px;"; document.body.appendChild(button);