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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>

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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-.

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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If the script you link to has the file extension of a preprocessor, we'll attempt to process it before applying.

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Packages

Add Packages

Search for and use JavaScript packages from npm here. By selecting a package, an import statement will be added to the top of the JavaScript editor for this package.

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Using packages here is powered by esm.sh, which makes packages from npm not only available on a CDN, but prepares them for native JavaScript ESM usage.

All packages are different, so refer to their docs for how they work.

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HTML 

              
                .logo
	.line.left.top
	.line.left
	.line.middle.top
	.line.middle
	.line.right.top
	.line.right
	
svg
	filter#noiseFilter
		feTurbulence(type='turbulence' baseFrequency='.995'  numOctaves='6' stitchTiles='stitch' result="noise")
		feComposite(in="noise" in2="SourceAlpha" operator="in" result="flood_alpha")
		feDisplacementMap(
			id="disp"
      in2="noise"
      in="SourceGraphic"
      scale="50"
      xChannelSelector="B"
      yChannelSelector="B"
			result="displace")
		feBlend(mode="exclusion" in="flood_alpha" in2="SourceGraphic" result="blend")
		feBlend(mode="saturation" in="blend" in2="displace")
!

CSS 

              
                // font import
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@900&display=swap')
// global reset
*
	box-sizing: border-box
	margin: auto
// body setup
body
	position: relative
	height: 100vh
	display: flex
	background: #0f0f0f
	overflow: hidden
	perspective: 1440px

// the stuff
.logo
	position: relative
	width: 100%
	max-width: 300px
	height: 300px
	border-radius: 50%
	&::before
		content: ''
		position: absolute
		width: 100%
		height: 100%
		left: 0
		top: 50px
		background: radial-gradient(50% 30%, #ffffff3f, transparent)
		border-radius: 50%
		opacity: 0
		filter: blur(50px) url(#noiseFilter)
		animation: osc 10s linear infinite 1s
	&::after
		content: ''
		position: fixed
		width: 50%
		min-width: 300px
		aspect-ratio: 1
		left: 50%
		top: 50%
		background: #0f0f0f9f
		border-radius: 50%
		transform: translate(-50%,-50%)
		// filter: blur(50px) url(#noiseFilter)
	// box-shadow: 0 50px 500px #ffffff3f
.line
	position: absolute
	width: 50px
	height: 1px
	background: #f0f0f05f
	// opacity: 0
	animation: colorin 1.1s ease-in-out 1, osc .1s linear infinite 3s
	z-index: 10
	&::before
		content: ''
		position: absolute
		width: 200%
		height: 1000%
		left: -50%
		top: -500%
		background: #ffffff2f
		filter: blur(8px)
	&::after
		content: ''
		position: absolute
		width: 100%
		height: 100%
		background: #ffffffaf
		opacity: 0
		animation: stream .621s linear infinite alternate-reverse
	&.left
		left: 63px
		rotate: 35deg
		top: 55%
		animation-delay: .03s,1.03s
		&::after
			animation-delay: 1.83s
		&.top
			rotate: -35deg
			top: 45%
			animation-delay: .003s,1.003s
			&::after
				animation-delay: 1.63s
	
	&.middle
		width: 100px
		left: 100px
		top: 50%
		rotate: 35deg
		animation-delay: .21s,1.21s
		&::after
			animation-delay: 1.04s
		&.top
			rotate: -35deg
			animation-delay: .3s,1.3s
			&::after
				animation-delay: 1.3s
		
	&.right
		right: 63px
		rotate: -35deg
		top: 55%
		animation-delay: .23s,1.23s
		&::after
			animation-delay: 1.8s
		&.top
			rotate: 35deg
			top: 40%
			top: 45%
			animation-delay: .12s,1.12s
			&::after
				animation-delay: 1.3s
	
	
@keyframes osc
	0%
		opacity: 1
		transform: scaleY(1)
	50%
		opacity: .2
		transform: scaleY(7)
	60%
		opacity: 1
		transform: scaleY(2)
	70%
		opacity: .1
		transform: scaleY(5)
	100%
		opacity: 1
		transform: scaleY(1)
	
@keyframes stream
	0%
		opacity: 0
		transform: translateX(-1000%)
	35%
		opacity: 0
	50%
		opacity: 1
		transform: translateX(0%)
	65%
		opacity: 0
	100%
		opacity: 0
		transform: translateX(1000%)

@keyframes colorin
	0%
		background: #f0f0f00f
	50%
		background: #f0f0f05f
	100%
		background: #f0f0f00f

svg
	position: absolute
!

JS
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999px

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