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CSS rule finder

function allowing to get the CSS rules applied to an element

Fra 15.01.2020. Se den seneste versjonen.

Dette scriptet burde ikke installeres direkte. Det er et bibliotek for andre script å inkludere med det nye metadirektivet // @require https://updategreasyfork.deno.dev/scripts/394970/765702/CSS%20rule%20finder.js 

// ==UserScript==
// @name         CSS rule finder
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  function allowing to get the CSS rules applied to an element
// @author       You
// @match        http://*/*
// @grant        none
// ==/UserScript==

function css(el) {
    var sheets = document.styleSheets, ret = [];
    el.matches = el.matches || el.webkitMatchesSelector || el.mozMatchesSelector || el.msMatchesSelector || el.oMatchesSelector;
    for (var i in sheets) {
        var rules = sheets[i].rules || sheets[i].cssRules;
        for (var r in rules) {
            if (el.matches(rules[r].selectorText)) {
                ret.push(rules[r].cssText);
            }
        }
    }
    return ret;
}