Revert StackExchange Formatting

Brings back the old line-height, colors, padding, borders, etc. of StackExchange websites like StackOverflow, SuperUser, ServerFault, etc.

Mint 2020.09.01.. Lásd a legutóbbi verzió

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         Revert StackExchange Formatting
// @namespace    https://github.com/Prid13/Revert-StackExchange-Formatting
// @version      1.1.0
// @history      1.1.0 fully implemented old paragraph spacing
// @history      1.0.8 added old compact paragraph spacing (margin-bottom)
// @history      1.0.5 fixed bug: first line in code blocks being indented
// @description  Brings back the old line-height, colors, padding, borders, etc. of StackExchange websites like StackOverflow, SuperUser, ServerFault, etc.
// @author       Prid
// @include      /^https://(?:[^/]+\.)?(?:(?:stackoverflow|serverfault|superuser|stackexchange|askubuntu|stackapps)\.com|mathoverflow\.net)//
// @run-at       document-start
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    var style = "";

    var values = {
        line_height: 1.3,
        
        paragraph_spacing: "15px",

        code_block_bgcol: "#eff0f1",
        code_block_padding: "12px 8px",
        code_block_radius: "3px",

        inline_code_bgcol: "#e4e6e8",
        inline_code_padding: "1px 5px",
        inline_code_radius: "0px",

        comment_code_bgcol: "#eff0f1",
        comment_code_padding: "1px 5px",
    };

    buildCSS();
    injectCSS();

    function buildCSS(){
        var line_height = values.line_height;

        // paragraphs (revert line-height)
        style += ".s-prose { line-height: " + line_height + "!important; }";
        
        // OLD PARAGRAPH SPACING
    		style += ".s-prose p, .s-prose ol, .s-prose ul, .s-prose blockquote, .s-prose hr { ";
    		style += 	"margin-bottom: "		+ values.paragraph_spacing + "!important;"; // 15px
    		style += "}";
    		
    		// margin-bottom for <pre>
    		style += ".s-prose pre { ";
    		style += 	"margin-bottom: "		+ "13px!important;";
    		style += "}";
    		
    		// margin-bottom for ul li, ol li
    		style += ".s-prose ol li, .s-prose ul li { ";
    		style += 	"margin-bottom: "		+ "7.5px!important;";
    		style += "}";
    		// fix margin-bottom for last element in ol and ul
    		style += ".s-prose ol li:last-child, .s-prose ul li:last-child { ";
    		style += 	"margin-bottom: "		+ "0!important;";
    		style += "}";
    		
    		// heading margin-bottom
    		style += ".s-prose h1 { margin-bottom: 21px!important; }";
    		style += ".s-prose h2 { margin-bottom: 19px!important; }";
    		style += ".s-prose h3 { margin-bottom: 17px!important; }";
    		style += ".s-prose h4 { margin-bottom: 15px!important; }";
    		
    		// fix margin-bottom for last element in blockquote
    		style += ".s-prose blockquote *:last-child { ";
    		style += 	"margin-bottom: "		+ "0!important;"; // don't apply to blockquotes
    		style += "}";

        // ADDITIONAL REVERSIONS
            // code blocks
            style += ".s-prose pre:not(.s-code-block) { ";
            style += 	"line-height: " 		+ line_height + "!important;";
            style += 	"background-color: " 		+ values.code_block_bgcol + "!important;";
            style += 	"padding: " 			+ values.code_block_padding + "!important;";
            style += 	"border-radius: " 		+ values.code_block_radius + "!important;";
            style += "}";

            // fix inline code styling overriding code blocks (add transparent bg, remove padding)
			style += ".s-prose pre:not(.s-code-block) code { ";
			style += 	"background-color: transparent!important;";
			style += 	"padding: 0!important;";
			style += "}";

            // inline code
            style += ".s-prose code:not(.s-code-block) {";
            style += 	"background-color: " 		+ values.inline_code_bgcol + "!important;";
            style += 	"padding: " 			+ values.inline_code_padding + "!important;";
            style += 	"border-radius: " 		+ values.inline_code_radius + "!important;";
            style += "}";

            // comment inline code
            style += ".comment-text code {";
            style += 	"background-color: " 		+ values.comment_code_bgcol + "!important;";
            style += 	"padding: " 			+ values.comment_code_padding + "!important;"; // padding is same
            style += "}";

    }

    function injectCSS(){
        // credit: https://stackoverflow.com/a/13436780/3705191
        var cssStyle = document.createElement('style');
        cssStyle.type = 'text/css';
        var rules = document.createTextNode(style);
        cssStyle.appendChild(rules);
        document.getElementsByTagName("head")[0].appendChild(cssStyle);
    }
})();