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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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CSS

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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

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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HTML 

              
                <div><h1 data-text="I/O"><span data-text="I/O">I/O</span></h1></div>
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CSS 

              
                $purple: #1d2b38;

@font-face {
	font-family: 'Decovar Draw'; 
	src:url('https://s3-us-west-2.amazonaws.com/s.cdpn.io/209981/DecovarDRAW-VF.ttf');
}

h1 {
	margin: 0;
	font-size: 30vw;
	position: relative;
	font-weight: 400;
	letter-spacing: 1rem;
	font-family: "Decovar Draw"; 
	font-variation-settings: 'RSEC' 60.00;
	animation: draw 4s infinite;
	background: linear-gradient(to bottom, #a67d83 0%,#616cd3 20%,#84fafc 43%,#fdfbf3 60%,#f9f697 82%,#f4d186 100%);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
}

h1::before {
	content: attr(data-text);
	width: 100%;
	position: absolute;
	left: 0;
	top: 0;
	z-index: -1;
	text-shadow: -1px -1px 0 $purple, 1px -1px 0 $purple, -1px 1px 0 $purple,
		1px 1px 0 $purple, 1px 0px 0px $purple, 0px 1px 0px $purple, 2px 1px 0px $purple,
		1px 2px 0px $purple, 3px 2px 0px $purple, 2px 3px 0px $purple, 4px 3px 0px $purple,
		3px 4px 0px $purple, 5px 4px 0px $purple, 3px 5px 0px $purple,
		6px 5px 0px $purple, -1px 2px 0 $purple, 0 3px 0 $purple, 1px 4px 0 $purple,
		2px 5px 0px $purple, 2px -1px 0 $purple, 3px 0 0 $purple, 4px 1px 0 $purple,
		5px 2px 0px $purple, 6px 3px 0 $purple, 7px 4px 0 $purple,  7px 5px 0 $purple;  	
}

span::before {
	content: attr(data-text);
	width: 100%;
	position: absolute;
	left: 0;
	top: 0;
	z-index: -3;
	transform: translate(10px, 5px);
	text-shadow: -1px -1px 0 $purple, 1px -1px 0 $purple, -1px 1px 0 $purple,
		1px 1px 0 $purple, 1px 0px 0px $purple, 0px 1px 0px $purple, 2px 1px 0px $purple,
		1px 2px 0px $purple, 3px 2px 0px $purple, 2px 3px 0px $purple, 4px 3px 0px $purple,
		3px 4px 0px $purple, 5px 4px 0px $purple, 3px 5px 0px $purple,
		6px 5px 0px $purple, -1px 2px 0 $purple, 0 3px 0 $purple, 1px 4px 0 $purple,
		2px 5px 0px $purple, 2px -1px 0 $purple, 3px 0 0 $purple, 4px 1px 0 $purple,
		5px 2px 0px $purple, 6px 3px 0 $purple, 7px 4px 0 $purple,  7px 5px 0 $purple;  	
}

h1::after {
	content: attr(data-text);
	width: 100%;
	position: absolute;
	left: 0;
	top: 0;
	transform: translate(10px, 5px);
	z-index: -2;
	background: linear-gradient(to bottom, #a67d83 0%,#616cd3 20%,#84fafc 43%,#fdfbf3 60%,#f9f697 82%,#f4d186 100%);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	animation: draw 4.1s infinite;

		
}

@keyframes draw {
	0% {font-variation-settings: 'DRAW' 1000;}
	50% {font-variation-settings: 'DRAW' 0;}
	100% {font-variation-settings: 'DRAW' 1000;}		
}

// Positioning - This is general CSS positioning to center the text in the page. It's not required for the text effect you can modify these however you like.
html {
	height: 100%;
}

body {
	background: radial-gradient(ellipse at center, #1d2b38 64%,#1f2e3a 100%);
	height: 100%;
}

div {
	width: 100%;
	height: 100%;
	display: flex;
	align-items: center;
	justify-content: center;
}

h1 {
	display: flex;
	align-items: center;
	justify-content: center;
	align-content: center;
	text-align: center;
	
	&:after, &:before {
		display: flex;
		align-items: center;
		justify-content: center;
		height: 100%;
	}
}
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JS
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