tools.us.user.js

// ==UserScript==
// @name         toools.us css fixer
// @namespace    http://tampermonkey.net/
// @version      1.0
// @description  try to take over the world!
// @author       You
// @match        *://toool.us/*
// @grant        none
// @update       https://gist.github.com/viruscmd/8ef75ff5057ee12732bee80239234fb2/raw/tools.us.user.js
// ==/UserScript==

(function() {
    'use strict';

    addStyle(`
            body {
                margin: auto;
                padding: 0 1.5rem;
                max-width: 1024px;
                width: 100%;
                box-sizing: border-box;
            }

            img {
                max-width: 100%;
                height: auto;
                }
            `)

    function addStyle(styleString) {
        const style = document.createElement('style');
        style.textContent = styleString;
        document.head.append(style);
    }
})();