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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.

!
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-.

We offer two popular choices: Autoprefixer (which processes your CSS server-side) and -prefix-free (which applies prefixes via a script, client-side).

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JavaScript

About JavaScript Preprocessors

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

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Babel includes JSX processing.

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Packages

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HTML 

              
                <div class="viewport"><span id="w"></span><span id="h"></span></div>
<!-- 
You will need to add the following for the demo: id="characters"
Do not delete or edit anything above this line.
Make your edits below this line -->

<div class="row">
	<div class="col-8">
		<img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/1932025/LHCL-PRIM-WSTUFF-web-rez.jpg">
	</div>
	<div class="col-4">
			<div class="col-12">
				<p id="characters">Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat. Duis autem vel eum iriure dolor in hendrerit in vulputate velit esse molestie consequat, vel illum dolore eu feugiat nulla facilisis at vero eros et accumsan et iusto odio dignissim qui blandit praesent luptatum zzril delenit augue duis dolore te feugait nulla facilisi.</p>
			</div>
			<div class="col-6">
					<img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/1932025/LHCL-PRIM-FRONT.jpg">
			</div>
			<div class="col-6">
					<img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/1932025/LHCL-PRIM-SIDE.jpg">
			</div>
	</div>
</div>

<div class="row">
	<div class="col-8">
		<h2>Lorem ipsum dolor sit amet</h2>
		<p>consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat. Duis autem vel eum iriure dolor in hendrerit in vulputate velit esse molestie consequat, vel illum dolore eu feugiat nulla facilisis at vero eros et accumsan et iusto odio dignissim qui blandit praesent luptatum zzril delenit augue duis dolore te feugait nulla facilisi.</p>
	</div>
</div>
<div class="row">
	<div class="col-2">
		<img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/1932025/LHACC-TR.jpg">
	</div>
	<div class="col-2">
		<img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/1932025/LHACC-KIT.jpg">
	</div>
	<div class="col-2">
		<img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/1932025/LHACC-PET.jpg">
	</div>
	<div class="col-2">
		<img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/1932025/LHACC-BED.jpg">
	</div>
</div>

<div class="row">
	<div class="col-12">
		<h1>Introduction to web typography</h1>
		<p><i>Web typography</i> refers to the use of fonts on the <em>World Wide Web</em>. When HTML was first created, font faces and styles were controlled exclusively by the settings of each Web browser. There was no mechanism for individual Web pages to control font display until Netscape introduced the <code>&lt;font&gt;</code> tag in 1995, which was then standardized in the HTML 2 specification. However, the font specified by the tag had to be installed on the user's computer or a fallback font, such as a browser's default sans-serif or monospace font, would be used. The first <b>Cascading Style Sheets</b> specification was published in 1996 and provided the same capabilities.</p>
	</div>
</div>
!

CSS 

              
                @import url('https://fonts.googleapis.com/css?family=Exo+2:300,300i,600|Vollkorn:700');

body {
	font-family: 'Exo 2', sans-serif;
	font-weight: 300;
}

i, em {
	font-style: italic;
}

b, strong {
	font-weight: 600;
}

h1, h2, h3 {
	font-family: 'Vollkorn', serif;
	font-weight: 700;
}

/* STOP!!!!!!! DO NOT DELETE OR CHANGE ANYTHING BELOW THIS LINE!!!!!!! */
.row {
	margin: 14px auto;
	width: 100%;
}

.row:after {
    clear: both;
    content: "";
    display: table;
}

[class^="col-"] {
	float: left;
	width: 100%;
}

[class^="col-"] {
	margin-left: 10px;
	margin-right: 10px;
}

.col-1 {
	width: calc(8.33333333% - 20px);   
}

.col-2 {
	width: calc(16.66666666% - 20px);   
}

.col-3 {
	width: calc(25% - 20px);   
}

.col-4 {
	width: calc(33.33333333% - 20px);   
}

.col-5 {
	width: calc(41.66666666% - 20px);   
}

.col-6 {
	width: calc(50% - 20px);
}

.col-7 {
	width: calc(58.33333333% - 20px);   
}

.col-8 {
	width: calc(66.66666666% - 20px);   
}

.col-9 {
	width: calc(75% - 20px);   
}

.col-10 {
	width: calc(83.33333333% - 20px);   
}

.col-11 {
	width: calc(91.66666666% - 20px);   
}

.col-12 {
	width: calc(100% - 20px);   
}

img {
	max-width: 100%;
}

.viewport {
	background-color: rgba(255, 0, 0, 0.5);
	border-bottom-left-radius: 8px;
	color: #fff;
	font-family: 'Courier New', Courier, monospace;
	font-size: 2em;
	right: 0;
	text-align: center;
	top: 0;
	padding: 3px 5px 0 5px;
	position: fixed;
}

.highlight {
	background-color: rgba(255, 255, 0, 0.75);
}
!

JS 

              
                (function() {
	var ele = document.getElementById("characters");
	if (ele) {
		var str= document.getElementById("characters").innerHTML;
		var str1 = "";
		for(var i = 45; i < 75; i++) {
			str1 += str[i];
		}
		var n=str.replace(str1,'<span class="highlight">' + str1 + '</span>');
		document.getElementById("characters").innerHTML=n;
	}

	if (typeof(document.documentElement.clientWidth) != 'undefined') {
		var $w = document.getElementById('w'),
			$h = document.getElementById('h');
		$w.innerHTML = document.documentElement.clientWidth;
		$h.innerHTML = ' &times; ' + document.documentElement.clientHeight;
		window.onresize = function(event) {
			$w.innerHTML = document.documentElement.clientWidth;
			$h.innerHTML = ' &times; ' + document.documentElement.clientHeight;
		};
	}
})();
!
999px

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