Use shift + mouse wheel to change the volume of first video found on page
(function() {
'use strict';
// ==UserScript==
// @name Volume denormalize
// @namespace http://tampermonkey.net/
// @version 0.0.2
// @description Use shift + mouse wheel to change the volume of first video found on page
// @author Andrei Balashov
// @match *://*/*
// @icon https://www.google.com/s2/favicons?domain=youtube.com
// @grant none
// @license MIT
// ==/UserScript==
addEventListener("wheel", (event) => {
if(!event.shiftKey){
return
}
if(event.deltaY<0){
document.querySelector('video').volume *= 1.1
}else{
document.querySelector('video').volume *= 0.9
}
})
})();