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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

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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Packages

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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.

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HTML 

              
                <div class="brand" style="background:black; text-align:center;"><a href="https://www.creativecodingclub.com/bundles/creative-coding-club?src=blobcdp" target="_blank"><img src="https://assets.codepen.io/32887/logo-ill.svg" width="300" alt="" /></a></div>
<div class="demo">
	<svg viewBox="0 0 500 300" xmlns="http://www.w3.org/2000/svg">
  <defs></defs>
  <path style="fill: none; stroke-width: 5px; stroke: rgb(144, 141, 141);" d="M 351.8083 69.1945 C 422.1606 69.1945 452.1813 152.7418 426.3861 219.5199 C 405.0252 274.8184 337.3086 293.2454 291.7926 256.1453 C 257.7861 228.4267 237.5661 185.2092 174.1128 219.11 C 112.7792 251.8783 41.8145 190.9837 58.0919 122.3275 C 62.0722 105.5392 70.6161 90.238 82.741 78.1835 C 124.6481 36.5197 192.571 40.5485 229.4636 86.8863 C 257.1423 121.7631 305.7904 70.9843 351.8083 69.1945 Z" class="myPath"></path>
</svg>
</div>
!

CSS 

              
                body {
	background:#1d1d1d;
	margin:0;
}

.demo {
	opacity:0;
}

.demo svg {
	overflow:visible;
}
!

JS 

              
                gsap.set(".demo", { opacity: 1 });
const svg = document.querySelector(".demo svg")
const ns = "http://www.w3.org/2000/svg"
const tl = gsap.timeline({id:"path followers"});

// need help learning GSAP?
// my GSAP Course Bundle can help
// https://www.creativecodingclub.com/bundles/creative-coding-club
// Unlock over 240 Premium GSAP lessons today


function createCircles(numCircles) {
	for (let i = 0; i < numCircles; i++) {
		let newCircle = document.createElementNS(ns, "circle")
  
		newCircle.setAttributeNS(null, "cx", 100)
		newCircle.setAttributeNS(null, "cy", 100)
		newCircle.setAttributeNS(null, "r", 20)
		newCircle.setAttributeNS(null, "stroke", "white")
		newCircle.setAttributeNS(null, "stroke-width", 4)
		svg.appendChild(newCircle)
		let start = i/numCircles // secret sauce for circles
		gsap.set(newCircle, {fill:`hsl(${(i/numCircles) * 360}, 80%, 50%)`})
		tl.to(newCircle, {
    		motionPath: {
      		path: ".myPath",
      		align: ".myPath",
      		alignOrigin: [0.5, 0.5],
      		start:start,
      		end:start + 1
    }, ease:"none", duration:8, repeat:20
  }, 0)
		tl.to(newCircle, {scale:2, duration:1, repeat:80, repeatDelay:1, yoyo:true}, i*0.5)
	}
}

createCircles(16);



GSDevTools.create({animation:tl});
gsap.config({trialWarn:false});
!
999px

Console