narrow body margin in current webpage to make it more readable. open it in right click menu, and enter percentage of margin, that it.
// ==UserScript==
// @name Narrower(右键菜单)
// @namespace http://tampermonkey.net/
// @version 0.1
// @description narrow body margin in current webpage to make it more readable. open it in right click menu, and enter percentage of margin, that it.
// @author You
// @include *
// @icon https://www.google.com/s2/favicons?sz=64&domain=ik4.es
// @run-at context-menu
// @license MIT
// @grant none
// ==/UserScript==
let value = prompt("Please enter rate %", "40");
value = value/2;
value = value + '%';
document.documentElement.style.paddingLeft = value;
document.documentElement.style.paddingRight = value;