JSFiddle - React, Tailwind, and code Playground

by mqchen

HTML

<button id="invert">Invert</button>
<button id="revert">Revert</button>

<h1>HTML Ipsum Presents</h1>
	       
<p><strong>Pellentesque habitant morbi tristique</strong> senectus et netus et malesuada fames ac turpis egestas. Vestibulum tortor quam, feugiat vitae, ultricies eget, tempor sit amet, ante. Donec eu libero sit amet quam egestas semper. <em>Aenean ultricies mi vitae est.</em> Mauris placerat eleifend leo. Quisque sit amet est et sapien ullamcorper pharetra. Vestibulum erat wisi, condimentum sed, <code>commodo vitae</code>, ornare sit amet, wisi. Aenean fermentum, elit eget tincidunt condimentum, eros ipsum rutrum orci, sagittis tempus lacus enim ac dui. <a href="#">Donec non enim</a> in turpis pulvinar facilisis. Ut felis.</p>

<h2>Header Level 2</h2>
	       
<ol>
   <li>Lorem ipsum dolor sit amet, consectetuer adipiscing elit.</li>
   <li>Aliquam tincidunt mauris eu risus.</li>
</ol>

<blockquote><p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vivamus magna. Cras in mi at felis aliquet congue. Ut a est eget ligula molestie gravida. Curabitur massa. Donec eleifend, libero at sagittis mollis, tellus est malesuada tellus, at luctus turpis elit sit amet quam. Vivamus pretium ornare est.</p></blockquote>

<h3>Header Level 3</h3>

<ul>
   <li>Lorem ipsum dolor sit amet, consectetuer adipiscing elit.</li>
   <li>Aliquam tincidunt mauris eu risus.</li>
</ul>

<pre><code>
#header h1 a { 
	display: block; 
	width: 300px; 
	height: 80px; 
}
</code></pre>

CSS

html, body {
    background: white;
}

JavaScript

var Inverter = function(el) {
    this.options = {
        className : 'invertColors',
        invertCss : {
            '-webkit-filter' : 'invert(1)',
            '-moz-filter' : 'invert(1)',
            '-ms-filter' : 'invert(1)',
            '-o-filter' : 'invert(1)',
            'filter' : 'invert(1)',
            'filter' : 'progid:DXImageTransform.Microsoft.BasicImage(invert=1);',
            'zoom' : '1',
        }
    };
    this.styleElement = null;
    this.element = $(el);
    
    // Generate css class style tag
    this._setupStyle();
};

Inverter.prototype._setupStyle = function() {
    this.styleElement = $('<style type="text/css"></style>');
    var css = '.' + this.options.className + ' {';
    for(var prop in this.options.invertCss) {
        css += prop + ':' + this.options.invertCss[prop] + ';';
    }
    css += '}';
    this.styleElement.html(css);
    $('head').append(this.styleElement);
};

Inverter.prototype._teardownStyle = function() {
    this.styleElement.remove();
};

Inverter.prototype.invert = function() {
    this.element.addClass(this.options.className);
};

Inverter.prototype.revert = function() {
    this.element.removeClass(this.options.className);
};


/////////////////////////// Test

var i = new Inverter('body');
$("#invert").click(function() {
    i.invert();
});
$("#revert").click(function() {
    i.revert();
});