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About the <head>

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CSS

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CSS Base

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JavaScript

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Babel includes JSX processing.

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HTML 

              
                <header>
	<div class="text">
		<h1 class="expanding-text">Parallax Expanding &amp; Blurred Title</h1>
		
	</div>
</header>
<main role="main">
	<div class="contained">
		<h2>Increase the line-height when the page scrolls.</h2>
		<p>Fusce dapibus, tellus ac cursus commodo, tortor mauris condimentum nibh, ut fermentum massa justo sit amet risus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et. Maecenas sed diam eget risus varius blandit sit amet non magna. Nulla vitae elit libero, a pharetra augue. Integer posuere erat a ante venenatis dapibus posuere velit aliquet.</p>
		<p>Curabitur blandit tempus porttitor. Integer posuere erat a ante venenatis dapibus posuere velit aliquet. Duis mollis, est non commodo luctus, nisi erat porttitor ligula, eget lacinia odio sem nec elit. Cras justo odio, dapibus ac facilisis in, egestas eget quam. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.</p>
		<h3>It might be too many effects, so maybe just choose one</h3>
		<p>Fusce dapibus, tellus ac cursus commodo, tortor mauris condimentum nibh, ut fermentum massa justo sit amet risus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et. Maecenas sed diam eget risus varius blandit sit amet non magna. Nulla vitae elit libero, a pharetra augue. Integer posuere erat a ante venenatis dapibus posuere velit aliquet.</p>
		<p>Curabitur blandit tempus porttitor. Integer posuere erat a ante venenatis dapibus posuere velit aliquet. Duis mollis, est non commodo luctus, nisi erat porttitor ligula, eget lacinia odio sem nec elit. Cras justo odio, dapibus ac facilisis in, egestas eget quam. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.</p>
</main>
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CSS 

              
                /* --- General Pen Styles --- */
body{
	font-size: 18px;
	line-height: 1.5;
	font-family: 'Bitter', serif;
}
h1,h2,h3,h4{
	font-family: 'Dosis', sans-serif;
	
}

.contained{
	margin: 0 auto;
	width: 90%;
	@media (min-width: 500px){
		width: 80%;
	}
	@media (min-width: 600px){
		width: 60%;
	}
}
main{
	padding: 3em 0 5em;
	position: relative;
	background: #f5f5f5;
	color: #444444;
	box-shadow: 0px -10px 60px rgba(0,0,0,0.25);
}
header{
	background-image: url(https://unsplash.it/1200/800?image=876);
	overflow: hidden;
	//padding-bottom determines the height of the header
	padding-bottom: 80vh
	
}


header{
	position: relative;
}
header .text{
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	color: white;
	text-align: center;
	width: 60%;
	@media (min-width: 700px){
		width: 40%;
	}
	h1{
		color: #f5f5f5;
		font-size: 40px;
		line-height: 1.25;//must match JS starting #
		letter-spacing: 3px;
		transition: font-size 300ms linear;
		@media (min-width: 500px){
			font-size: 50px;
		}
		@media (min-width: 750px){
			font-size: 65px;
		}
	}
}
!

JS 

              
                
$(window).scroll(function() {
  var scroll = $(window).scrollTop();
	$("header .expanding-text").css({
		'line-height': 1.25 + (scroll/400),
		'opacity': 1 - (scroll/500),
		"-webkit-filter": "blur(" + (scroll/200) + "px)",
		filter: "blur(" + (scroll/200) + "px)"

	});
});
!
999px

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