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HTML

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HTML preprocessors can make writing HTML more powerful or convenient. For instance, Markdown is designed to be easier to write and read for text documents and you could write a loop in Pug.

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Adding Classes

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About the <head>

In CodePen, whatever you write in the HTML editor is what goes within the <body> tags in a basic HTML5 template. If you need things in the <head> of the document, put that code here.

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Insecure Resource

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CSS

About CSS Preprocessors

CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

About CSS Base

It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: normalize.css and a reset. Or, choose Neither and nothing will be applied.

Vendor Prefixing

About Vendor Prefixing

To get the best cross-browser support, it is a common practice to apply vendor prefixes to CSS properties and values that require them to work. For instance -webkit- or -moz-.

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JavaScript

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JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

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Babel includes JSX processing.

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HTML 

              
                <div class="container">
	<div class="row">
		<div class="col-xs-12 col-sm-3"></div>
		<div class="col-xs-12 col-sm-6 quotebox">
			<div class="row">
				<div class="col-xs-12">
					<blockquote>
						<i class="fa fa-quote-left quotemark"></i>
						<h2 id="quotetext"></h2>
						<footer id="quotesource"></footer>
					</blockquote>
				</div>
			</div>
			<div class="row">
				<div class="col-xs-12 col-sm-12">
					<div class="social-icons icon-rounded"><a id="tweet-quote" title="Tweet this quote!" target="_blank"><i class="fa fa-twitter"></i></a>
					</div>
					<div class="quotebutton"><button class="btn btn-primary" id="newquote">New Quote</button></div>
					</div>
				</div>
			</div>
		</div>
		<div class="col-xs-12 col-sm-3"></div>
	</div>
</div>
!

CSS 

              
                body,
h1,
h2,
h3,
h4,
h5,
h6,
p
 { font-family: 'Raleway', sans-serif;
}

h1{font-size:35px;}
h2{font-size:30px;}
h3{font-size:25px;}
p {font-size:16px;}

body {background:#490A3D;}
.quotemark {
    position: relative;
    top: -12px;
    padding-right: 10px;
}

blockquote {
  border-left: 10px solid #490A3D;
  margin: 30px 10px;
  padding: 10px 30px;
}
blockquote:before {
  color: #ccc;
  line-height: 0.1em;
  margin-right: 0.25em;
  vertical-align: -0.4em;
}
blockquote h1, h2, h3, p{
  display: inline;
}
blockquote footer {
	font-size:18px;
	text-align:right;
	color:transparent;
}

.container {
	max-height:800px;
	margin: 10% auto auto auto;
}
.quotebox {
	background:#fff;
	max-width:500px;
	min-height:100px;
	border:1px solid #222;
	border-radius:5px;
	margin:10px;
}

.quotebutton {
	display:inline-block;
	padding:6px 12px;
}
	#quotesource{margin-top:20px}

.btn {margin-bottom:10px}

.social-icons {
	padding:6px 12px;
	display:inline-block;
	
}
.social-icons .fa {
	font-size: 1.8em;
	width: 40px;
	height: 40px;
	line-height: 40px;
	text-align: center;
	color: #FFF;
	-webkit-transition: all 0.3s ease-in-out;
	-moz-transition: all 0.3s ease-in-out;
	-ms-transition: all 0.3s ease-in-out;
	-o-transition: all 0.3s ease-in-out;
	transition: all 0.3s ease-in-out;
}
.social-icons.icon-rounded .fa{
	border-radius:5px;
}
.social-icons .fa:hover, .social-icons .fa:active {
	color: #FFF;
	-webkit-box-shadow: 1px 1px 3px #333;
	-moz-box-shadow: 1px 1px 3px #333;
	box-shadow: 1px 1px 3px #333; 
}
.social-icons .fa-twitter {
	background-color:#490A3D; 
	border-color:none;} 

.btn-primary {
	width: 100px;
	height: 40px;
	border:none;
	background:#490A3D;
	}

@media only screen and (max-width: 768px){  
    #quotetext {font-size:25px; }
	.container {	margin-right:20px;}
    }
@media only screen and (max-width: 320px){  
    #quotetext {font-size:18px; }

    }
!

JS 

              
                function inIframe() {
    try {
        return window.self !== window.top;
    } catch (e) {
        return true;
    }
}

		var colors = [
			'#490A3D',
			'#BD1550',
			'#E97F02',
			'#F8CA00',
			'#8A9B0F',
			'#69D2E7',
			'#FA6900',
			'#16a085',
			'#27ae60',
			'#2c3e50',
			'#f39c12',
			'#e74c3c',
			'#9b59b6',
			'#FB6964',
			'#342224',
			'#472E32',
			'#77B1A9',
			'#73A857'
		];

var quotes = [
    ["You only live once, but if you do it right, once is enough.","Mae West"],
    ["I am so clever that sometimes I don't understand a single word of what I am saying.","Oscar Wilde"],
    ["Two things are infinite: the universe and human stupidity; and I'm not sure about the universe.","Albert Einstein"],
	["The most beautiful experience we can have is the mysterious. It is the fundamental emotion that stands at the cradle of true art and true science.","Albert Einstein"]
	["It is our choices, Harry, that show what we truly are, far more than our abilities.","J.K. Rowling, Harry Potter and the Chamber of Secrets"],
	["All men who have turned out worth anything have had the chief hand in their own education.","Walter Scott"],
	["Trust yourself. You know more than you think you do.","Benjamin Spock"],
	["No one can make you feel inferior without your consent.","Eleanor Roosevelt, This is My Story"],
	["To be yourself in a world that is constantly trying to make you something else is the greatest accomplishment.","Ralph Waldo Emerson"],
	["Twenty years from now you will be more disappointed by the things that you didn't do than by the ones you did do. So throw off the bowlines. Sail away from the safe harbor. Catch the trade winds in your sails. Explore. Dream. Discover.","H. Jackson Brown Jr., P.S. I Love You"]
	];


var currentQuote = "";
var currentAuthor = "";
var randomquote = "";
var randomcolor = "";

function getQuote() {
	randomquote = Math.floor(Math.random() * quotes.length);
	randomcolor = Math.floor(Math.random() * colors.length);
    currentQuote = quotes[randomquote][0];
    currentAuthor = quotes[randomquote][1];
	if (inIframe()) {
		$('#tweet-quote').attr('href', 'https://twitter.com/intent/tweet?hashtags=quotes&related=aLamm&text=' + encodeURIComponent('"' + currentQuote + '" ' + currentAuthor));
	}

	$(document).ready(function () {
	    $('html body').animate({
	        backgroundColor: colors[randomcolor],
	        color: colors[randomcolor]
	    }, 500);
	    $('#newquote, .social-icons .fa-twitter').animate({ backgroundColor: colors[randomcolor] }, 500);
			$('blockquote footer').animate({ color: colors[randomcolor] }, 500);	
	    $('blockquote').animate({ borderLeftColor: colors[randomcolor] }, 500);
	    $('#quotetext').animate({ opacity: 0 }, 500, function () {
	        $(this).animate({ opacity: 1 }, 500);
	        $(this).text(currentQuote);
	    });
	    $('#quotesource').animate({ opacity: 0 }, 500, function () {
	        $(this).animate({ opacity: 1 }, 500);
	        $(this).text(currentAuthor);
	    });
    });    
}

function openURL(url) {
    window.open(url, 'Share', 'width=550, height=400, toolbar=0, scrollbars=1 ,location=0 ,statusbar=0,menubar=0, resizable=0');
}

getQuote();

$(document).ready(function () {
    $('#newquote').on('click', getQuote);
    $('#tweetquote').on('click', function () {
        if (!inIframe()) {
            openURL('https://twitter.com/intent/tweet?hashtags=quotes&related=freecodecamp&text=' + encodeURIComponent('"' + currentQuote + '" ' + currentAuthor));
        }
    });
});
!
999px

Console