When user scrolled down of page then it will make easy to get back to top of the page.
Per
// ==UserScript==
// @name Scroll To Top
// @namespace Back top top of the document
// @description When user scrolled down of page then it will make easy to get back to top of the page.
// @include *
// @version 1
// @require https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js
// @grant GM_addStyle
//
// ==/UserScript==
GM_addStyle ("[data-scroll]{height: 50px;width: 200px;font-size: 18px;line-height: 50px;text-transform: uppercase;text-align: center;background-color: rgba(255, 99, 71, 0.4);color: white;cursor: pointer;position: fixed;bottom: 10px;right: 10px;dispaly: none;z-index:999999;}[data-scroll]:hover {background-color: #ff6347;}");
$(function()
{
scroll_btn=$("<div />");
scroll_btn.attr("data-scroll",'0');
scroll_btn.html("▲Back to Top▲");
scroll_btn.hide();
$("body").append(scroll_btn);
$(window).scroll(function()
{
var window_height=$(window).height();
var scroll_height=$(document).scrollTop();
if(scroll_height>0)
{
scroll_btn.show(100);
}
else
scroll_btn.hide(100);
});
scroll_btn.click(function(e)
{
e.preventDefault();
$(window).scrollTop(0);
});
});