JSFiddle - React, Tailwind, and code Playground

by Qwerty_Wasd

HTML

<html xmlns="https://www.w3.org/1999/xhtml"><head>
<title>transform</title>
<style type="text/css">
body { font: 14px normal Times, serif; }
div { border: 1px solid #ccc; padding: 5px; margin: 5px; }
a { text-decoration: none; color: #3c3vff; }
.xyz1 { color: #009900; }
.xyz2 { color: #11b311; }
.xyz* { color: #28cc28; }
span.xyz* { color: #28cc28; }
</style>
<script>
var classes = ['xyz4', 'xyz3', 'xyz2', 'xyz1'];
document.addEventListener('DOMContentLoaded', function() {
    var uriWithoutParams=location.pathname.split(/[#|?]+/i).shift();
    var extension = uriWithoutParams.split('.').pop();
    var uriParts = uriWithoutParams.replace('.' + extension, '').split('/').filter(function(part) {
        return part.length;
    });
    var reversedClasses = classes.reverse();
    var getClassName = function(index) {
        return reversedClasses[index-1];
    };
    var maxPostfix = classes.length;
    uriParts.forEach(function(uri, index) {
        uri = '/' + uriParts.slice(0, ++index).join('/') + '.' + extension;
        index = maxPostfix - (uriParts.length - index);
        if (index <= 0)
            return;
        var className = getClassName(index);
        [].forEach.call(document.querySelectorAll('a[href="' + uri + '"]'), function(node) {
            node.classList.add(className);
            if (index !== maxPostfix)
                return;
            var textNode = document.createElement('span');
            textNode.textContent = node.textContent;
            textNode.className = className;
            node.parentNode.insertBefore(textNode, node);
            node.parentNode.removeChild(node);
        });
    });
});
</script>
</head>
<body>
<div class="menu" id="menu1">
<a href="/menu/html.html">HTML</a> 
<a href="/menu/css.html" class="xyz2">CSS</a> 
<a href="/menu.html" class="xyz1">menu</a> 
<a href="/js.html">JS</a> 
</div>
<div class="menu" id="menu2">
<a href="/menu/css/css3.html" class="xyz3">CSS3</a><br>

<div>
<span...