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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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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

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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 

              
                .path
	.wheel
article
	h1 animation-timeline
	p Animation-timeline - does not have much love in Firefox and Safari still.
	p
		| While it proivdes for a applying styles based on timeline, right inside the css, and hence encapsulating the functionality, it is still not fully supported, and as such for now it is still better to fallback to a Javascript IntersectionObserver or a library that provides this functionality.
	p
		| Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum vitae ex tristique, convallis nunc et, tincidunt tortor. Nulla mattis euismod tempus. Maecenas nec tempus mauris, quis consectetur erat. Nunc nisi lorem, ornare quis est vel, sollicitudin pellentesque felis.
	img(
		src="https://images.unsplash.com/photo-1423483641154-5411ec9c0ddf?crop=entropy&cs=tinysrgb&fit=max&fm=jpg&ixid=M3wzMjM4NDZ8MHwxfHJhbmRvbXx8fHx8fHx8fDE3MTkxOTQ5NDZ8&ixlib=rb-4.0.3&q=80&w=400",
		alt="hands holding a big bunch of grapes. ",
		title="Photo by Maja Petric for Unsplash"
	)
	p
		| Dolores, quia illo magni eligendi eveniet corporis, laudantium obcaecati eius unde reprehenderit impedit, saepe amet nesciunt? Nulla, optio quam architecto libero, accusamus commodi, similique consequatur nam voluptatum debitis dolores suscipit.
	p
		| Vel architecto laboriosam mollitia earum accusantium sunt, minima distinctio exercitationem commodi asperiores facilis recusandae ducimus nemo excepturi similique. Dolor suscipit culpa adipisci nobis alias consequuntur quisquam, minima iusto quis quasi?
	img(
		src="https://images.unsplash.com/photo-1500762736728-b34f37b78c7b?crop=entropy&cs=tinysrgb&fit=max&fm=jpg&ixid=M3wzMjM4NDZ8MHwxfHJhbmRvbXx8fHx8fHx8fDE3MTkxOTUyMDh8&ixlib=rb-4.0.3&q=80&w=400",
		alt="",
		title="Photo by Yair Mejía for Unsplash."
	)
	p
		| Nam sed laboriosam dolor rem impedit vel dignissimos. Eligendi maiores quisquam inventore magni quam. Exercitationem atque necessitatibus voluptates mollitia soluta, doloremque tempora cum reprehenderit vero deleniti facilis minima molestiae voluptatem.
	img(
		src="https://images.unsplash.com/photo-1519897831810-a9a01aceccd1?crop=entropy&cs=tinysrgb&fit=max&fm=jpg&ixid=M3wzMjM4NDZ8MHwxfHJhbmRvbXx8fHx8fHx8fDE3MTkxOTUwMTl8&ixlib=rb-4.0.3&q=80&w=400",
		alt="",
		title="Photo by PHÚC LONG for Unsplash. "
	)
	p
		| Neque magnam veniam, delectus voluptas inventore in dolorum consequatur eum facere consequuntur nihil repudiandae nesciunt praesentium dicta amet nisi necessitatibus! Officiis quam ipsam repellendus, accusamus sapiente cumque repellat ullam eligendi.
	p
		| Quidem mollitia dolore facere maiores perspiciatis nihil minus inventore tempora animi amet culpa quaerat, numquam ratione cum totam consectetur eius vel deleniti. Hic facilis magnam ipsam suscipit doloribus officiis eveniet.
	p
		| Nulla voluptatem eaque ipsam cumque doloremque enim, facilis magnam veritatis autem fugit rem harum est accusantium maiores esse, fuga voluptas quos deserunt dolorum debitis velit nesciunt tenetur. Dignissimos, odit? Sit!
	p
		| Esse corporis, voluptas nostrum perspiciatis quasi natus magnam voluptatem consequuntur, consectetur reprehenderit minima est error autem praesentium expedita quas. Necessitatibus deserunt doloribus rerum, eligendi vel magnam corrupti perferendis possimus corporis!
!

CSS 

              
                @media (prefers-reduced-motion: no-preference) {
	h1 {
		animation: fade-out linear both, colorize linear both;
		animation-timeline: view();
		animation-range: exit -10px, exit -100px;
		background: linear-gradient(in hsl longer hue 40deg, #f66 0 0);
		background-clip: text;
	}
	@keyframes colorize {
		to {
			font-weight: 600;
			color: #0000;
		}
	}
	@keyframes fade-out {
		to {
			scale: 150%;
			opacity: 0;
			filter: blur(5px);
		}
	}
	img {
		position: relative;

		animation: scrollin cubic-bezier(0.23, -0.26, 0.78, 1.29) both,
			fade-out linear both;
		animation-timeline: view();
		animation-range: 1vh 50vh, exit -10px;
		transform-origin: left;
	}

	@keyframes scrollin {
		from {
			scale: 0.3;
			opacity: 0;
			left: -25vh;
		}
		to {
			opacity: 1;
			scale: 1;
			left: 0;
		}
	}

	.path {
		border-radius: 40vh 180vh 180vh 10vh;
		.wheel {
			//the only 3 lines that are important
			offset-path: polygon(
				0 0,
				97% 12%,
				0% 18%,
				100% 25%,
				0% 33%,
				96% 40%,
				1% 49%,
				100% 56%,
				0% 66%,
				100% 71%,
				3% 81%,
				100% 86%,
				0% 92%,
				100% 100%,
				0 100%
			); //border-box;
			animation: followpath linear;
			animation-timeline: scroll();
		}
	}

	@keyframes followpath {
		from {
			offset-distance: 4%;
		}
		to {
			offset-distance: 50%;
		}
	}

	//making the path pretty(ish)
	.path {
		position: fixed;
		z-index: 100;
		pointer-events: none;
		top: 1em;
		left: 0.5em;
		width: 1rem;
		height: 40vw;
		border: 1px solid #fff6;
		border-left-color: #0000;
		.wheel {
			width: 0px;
			aspect-ratio: 1;
			border: 1px solid hsl(290 85% 75% / 0.7);
			border-width: 0.4vw 1vw;
			border-radius: 30%;
		}
		background: radial-gradient(
					farthest-side at -33.33% 50%,
					#0000 52%,
					#f3f0f050 54% 57%,
					#0000 59%
				)
				0 calc(64px / 2),
			radial-gradient(
					farthest-side at 50% 133.33%,
					#0000 52%,
					#f3f0f050 54% 57%,
					#0000 59%
				)
				calc(64px / 2) 0,
			radial-gradient(
				farthest-side at 133.33% 50%,
				#0000 52%,
				#f3f0f050 54% 57%,
				#0000 59%
			),
			radial-gradient(
				farthest-side at 50% -33.33%,
				#0000 52%,
				#f3f0f050 54% 57%,
				#0000 59%
			),
			#0000;
		background-size: calc(64px / 4.667) 64px, 64px calc(64px / 4.667);
	}
	.path:after,
	.path:before {
		content: "0%";
		text-align: center;
		font-size: 0.5rem;
		position: absolute;
		inset: -0.5vw;
		top: 1em;
		opacity: 0.9;
	}
	.path:before {
		content: "100%";
		top: unset;
		bottom: 0.5em;
	}
}

//fluff

@import url("https://fonts.googleapis.com/css2?family=Montserrat:wght@100..700&display=swap");

body {
	font-family: "Montserrat", sans-serif;
	font-size: 1rem;
	margin: 0;
	background-color: #1f2020;
	color: #f9f6ef;
}
h1 {
	font-wrap: balanced;
	font-size: clamp(2rem, 7cqi, 10rem);
	font-weight: 100;
	color: hsl(290 85% 75%);
}
img {
	max-width: 100%;
}
p {
	text-wrap: pretty;
}
article {
	width: min(60ch, 100% - 4rem);
	margin: 0 auto;
}
!

JS
!
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