Debug CSS

A script to show outline of all the element exist on page. (origin: Debug-CSS Firefox Extension)

Verze ze dne 01. 08. 2025. Zobrazit nejnovější verzi.

K instalaci tototo skriptu si budete muset nainstalovat rozšíření jako Tampermonkey, Greasemonkey nebo Violentmonkey.

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

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Userscripts.

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

K instalaci tohoto skriptu si budete muset nainstalovat manažer uživatelských skriptů.

(Už mám manažer uživatelských skriptů, nechte mě ho nainstalovat!)

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.

(Už mám manažer uživatelských stylů, nechte mě ho nainstalovat!)

// ==UserScript==
// @name         Debug CSS 
// @version      1.0
// @encoding     utf-8
// @description  A script to show outline of all the element exist on page. (origin: Debug-CSS Firefox Extension)
// @author       Hamadah2O2 | Pranay Joshi
// @license      MIT
// @match        *://*/*
// @run-at       document-end
// @namespace https://greasyfork.org/users/1500331
// ==/UserScript==

const debugCSS = document.createElement("style");
debugCSS.id = "debugCSS";

debugCSS.textContent = `
body{outline:1px solid #2980b9!important}article{outline:1px solid #3498db!important}nav{outline:1px solid #0088c3!important}aside{outline:1px solid #33a0ce!important}section{outline:1px solid #66b8da!important}header{outline:1px solid #99cfe7!important}footer{outline:1px solid #cce7f3!important}h1{outline:1px solid #162544!important}h2{outline:1px solid #314e6e!important}h3{outline:1px solid #3e5e85!important}h4{outline:1px solid #449baf!important}h5{outline:1px solid #c7d1cb!important}h6{outline:1px solid #4371d0!important}main{outline:1px solid #2f4f90!important}address{outline:1px solid #1a2c51!important}div{outline:1px solid #036cdb!important}p{outline:1px solid #ac050b!important}hr{outline:1px solid #ff063f!important}pre{outline:1px solid #850440!important}blockquote{outline:1px solid #f1b8e7!important}ol{outline:1px solid #ff050c!important}ul{outline:1px solid #d90416!important}li{outline:1px solid #d90416!important}dl{outline:1px solid #fd3427!important}dt{outline:1px solid #ff0043!important}dd{outline:1px solid #e80174!important}figure{outline:1px solid #f0b!important}figcaption{outline:1px solid #bf0032!important}table{outline:1px solid #0c9!important}caption{outline:1px solid #37ffc4!important}thead{outline:1px solid #98daca!important}tbody{outline:1px solid #64a7a0!important}tfoot{outline:1px solid #22746b!important}tr{outline:1px solid #86c0b2!important}th{outline:1px solid #a1e7d6!important}td{outline:1px solid #3f5a54!important}col{outline:1px solid #6c9a8f!important}colgroup{outline:1px solid #6c9a9d!important}button{outline:1px solid #da8301!important}datalist{outline:1px solid #c06000!important}fieldset{outline:1px solid #d95100!important}form{outline:1px solid #d23600!important}input{outline:1px solid #fca600!important}keygen{outline:1px solid #b31e00!important}label{outline:1px solid #ee8900!important}legend{outline:1px solid #de6d00!important}meter{outline:1px solid #e8630c!important}optgroup{outline:1px solid #b33600!important}option{outline:1px solid #ff8a00!important}output{outline:1px solid #ff9619!important}progress{outline:1px solid #e57c00!important}select{outline:1px solid #e26e0f!important}textarea{outline:1px solid #cc5400!important}details{outline:1px solid #33848f!important}summary{outline:1px solid #60a1a6!important}command{outline:1px solid #438da1!important}menu{outline:1px solid #449da6!important}del{outline:1px solid #bf0000!important}ins{outline:1px solid #400000!important}img{outline:1px solid #22746b!important}iframe{outline:1px solid #64a7a0!important}embed{outline:1px solid #98daca!important}object{outline:1px solid #0c9!important}param{outline:1px solid #37ffc4!important}video{outline:1px solid #6ee866!important}audio{outline:1px solid #027353!important}source{outline:1px solid #012426!important}canvas{outline:1px solid #a2f570!important}track{outline:1px solid #59a600!important}map{outline:1px solid #7be500!important}area{outline:1px solid #305900!important}a{outline:1px solid #ff62ab!important}em{outline:1px solid #800b41!important}strong{outline:1px solid #ff1583!important}i{outline:1px solid #803156!important}b{outline:1px solid #cc1169!important}u{outline:1px solid #ff0430!important}s{outline:1px solid #f805e3!important}small{outline:1px solid #d107b2!important}abbr{outline:1px solid #4a0263!important}q{outline:1px solid #240018!important}cite{outline:1px solid #64003c!important}dfn{outline:1px solid #b4005a!important}sub{outline:1px solid #dba0c8!important}sup{outline:1px solid #cc0256!important}time{outline:1px solid #d6606d!important}code{outline:1px solid #e04251!important}kbd{outline:1px solid #5e001f!important}samp{outline:1px solid #9c0033!important}var{outline:1px solid #d90047!important}mark{outline:1px solid #ff0053!important}bdi{outline:1px solid #bf3668!important}bdo{outline:1px solid #6f1400!important}ruby{outline:1px solid #ff7b93!important}rt{outline:1px solid #ff2f54!important}rp{outline:1px solid #803e49!important}span{outline:1px solid #cc2643!important}br{outline:1px solid #db687d!important}wbr{outline:1px solid #db175b!important}article:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}nav:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}aside:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}section:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}header:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}footer:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}h1:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}h2:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}h3:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}h4:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}h5:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}h6:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}main:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}address:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}div:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}p:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}hr:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}pre:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}blockquote:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}ol:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}ul:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}li:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}dl:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}dt:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}dd:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}figure:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}figcaption:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}table:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}caption:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}thead:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}tbody:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}tfoot:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}tr:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}th:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}td:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}col:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}colgroup:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}button:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}datalist:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}fieldset:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}form:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}input:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}keygen:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}label:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}legend:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}meter:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}optgroup:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}option:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}output:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}progress:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}select:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}textarea:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}details:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}summary:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}command:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}menu:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}del:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}ins:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}img:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}iframe:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}embed:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}object:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}param:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}video:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}audio:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}source:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}canvas:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}track:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}map:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}area:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}a:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}em:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}strong:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}i:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}b:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}u:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}s:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}small:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}abbr:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}q:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}cite:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}dfn:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}sub:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}sup:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}time:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}code:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}kbd:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}samp:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}var:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}mark:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}bdi:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}bdo:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}ruby:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}rt:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}rp:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}span:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}br:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}wbr:hover{-webkit-box-shadow:0 0 1rem rgba(0,0,0,.6);box-shadow:0 0 1rem rgba(0,0,0,.6);}
#debugCSSInfoBar {visibility:hidden; position: fixed; bottom: 0; width: 100%; padding: 20px 0; margin:0; background-color: #333; color: #eee; font-size: 16px; text-align: center; outline: none !important;-webkit-box-shadow:none !important;box-shadow:none !important;}
#debugCSSInfoBar.show{visibility:visible;}
#debugCSSInfoBar p {font-family: monospace; font-size: 16px; padding: 0; margin: 0; outline: none !important;-webkit-box-shadow:none !important;box-shadow:none !important;background-color:inherit !important;}
#debugCSSInfoBar b {color:#0088C3;outline: none !important;-webkit-box-shadow:none !important;box-shadow:none !important;background-color:inherit !important}
`;

var infoBar = "";

function toggleDebugCSS() {
    if (document.getElementById("debugCSS")) {
        document
            .getElementsByTagName("head")[0]
            .removeChild(document.getElementById("debugCSS"));
        document
            .getElementsByTagName("body")[0]
            .removeChild(document.getElementById("debugCSSInfoBar"));
        infoBar = "";
    } else {
        document.head.appendChild(debugCSS);
        initInfoBar();
    }
}

function initInfoBar() {
    debugCSSInfoBar = document.createElement("div");
    debugCSSInfoBar.id = "debugCSSInfoBar";
    debugCSSInfoBar.innerHTML = "<p>Hold Ctrl Key & hover on any element for detail</p>";
    document.body.appendChild(debugCSSInfoBar);
    infoBar = document.getElementById("debugCSSInfoBar");
}

function updateInfoBar(e) {
    if (!infoBar) return;
    var n = e.target.id.toString() || "",
        t = e.target.classList.toString() || "",
        o = e.target.nodeName.toLowerCase() || "";
    if (!infoBar) return;
    document.getElementById("debugCSSInfoBar").innerHTML = "<p>Hovered Element Detail(s)= { Element Type: <b> " + o + "</b>; Class(es) Applied: <b> " + t + "</b>; Element Id: <b> " + n + "</b>; }</p>";
}

function showInfoBar(e) {
    if (!infoBar) return;
    infoBar.className = "";
    if (e.ctrlKey && e.type == "keydown") infoBar.className = "show";
}

(function() {
    "use strict";
    document.addEventListener("keydown", (e) => {
        if (e.key.toLowerCase() === "c" && e.altKey && e.shiftKey) {
            toggleDebugCSS();
        }
    });
    document.addEventListener("mouseover", updateInfoBar);
    document.addEventListener("keydown", showInfoBar);
    document.addEventListener("keyup", showInfoBar);
})();