Kernel Hacker Read Mode userscript

kernel-hacker.read-mode.user.js

// ==UserScript==
// @name        Kernel hacker read mode
// @namespace   org.kernel
// @match       https://www.kernel.org/*
// @grant       none
// @version     1.0
// @author      -
// @description -
// ==/UserScript==

// to use install Violentmonkey browser extension: https://violentmonkey.github.io/

(function() {
    var readModeToggle = function () {
        var sidebarStyle = document.querySelector('.wy-nav-side').style;
        var contentStyle = document.querySelector('.wy-nav-content-wrap').style;
      
        if (sidebarStyle.display != "none") {
            sidebarStyle.display = "none";
            contentStyle.marginLeft = "0px";
        } else {
            sidebarStyle.display = "";
            contentStyle.marginLeft = "300px";
        }
    }

    var readModeToggleButton = document.createElement('button');
    readModeToggleButton.style.backgroundColor = "burlywood";
    readModeToggleButton.style.border = "none";
    readModeToggleButton.style.borderRadius = "3px";
    readModeToggleButton.textContent = "Read Mode"
    readModeToggleButton.addEventListener('click', readModeToggle);


    document.querySelector('.wy-breadcrumbs').appendChild(readModeToggleButton)
}());