Pen Settings

HTML

CSS

CSS Base

Vendor Prefixing

Add External Stylesheets/Pens

Any URL's added here will be added as <link>s in order, and before the CSS in the editor. If you link to another Pen, it will include the CSS from that Pen. If the preprocessor matches, it will attempt to combine them before processing.

+ add another resource

JavaScript

Babel includes JSX processing.

Add External Scripts/Pens

Any URL's added here will be added as <script>s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

+ add another resource

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.

Behavior

Save Automatically?

If active, Pens will autosave every 30 seconds after being saved once.

Auto-Updating Preview

If enabled, the preview panel updates automatically as you code. If disabled, use the "Run" button to update.

Format on Save

If enabled, your code will be formatted when you actively save your Pen. Note: your code becomes un-folded during formatting.

Editor Settings

Code Indentation

Want to change your Syntax Highlighting theme, Fonts and more?

Visit your global Editor Settings.

HTML

              
                <div class="grid">
	<header>
		<h1>Paper Snowflake Maker</h1>
		<p class="intro">Drag the handles to generate a unique snowflake.</p>
	</header>
	<div class="container">
		<div class="handle-group">
			<div class="handle-group__inner">
				<div class="handle" data-index="0" data-x="--x1" data-y="--y1" data-x-drag="true"></div>
				<div class="handle" data-index="1" data-x="--x2" data-y="--y2" data-x-drag="true"></div>
				<div class="handle" data-index="2" data-x="--x3" data-y="--y3"></div>
				<div class="handle" data-index="3" data-x="--rx1a" data-y="--ry1a"></div>
				<div class="handle" data-index="4" data-x="--rx1b" data-y="--ry1b" data-x-drag="true"></div>
				<div class="handle" data-index="5" data-x="--rx1c" data-y="--ry1c"></div>
				<div class="handle" data-index="6" data-x="--centerX1" data-y="--centerY1"></div>
				<div class="handle" data-index="7" data-x="--centerX2" data-y="--centerY2"></div>
				<div class="handle" data-index="8" data-x="--lx1a" data-y="--ly1a"></div>
				<div class="handle" data-index="9" data-x="--lx1b" data-y="--ly1b" data-x-drag="true"></div>
				<div class="handle" data-index="10" data-x="--lx1c" data-y="--ly1c"></div>
				<div class="handle" data-index="11" data-x="--lx2a" data-y="--ly2a"></div>
				<div class="handle" data-index="12" data-x="--lx2b" data-y="--ly2b" data-x-drag="true"></div>
				<div class="handle" data-index="13" data-x="--lx2c" data-y="--ly2c"></div>
			</div>
		</div>
		<div class="snowflake">
			<div class="triangle" style="--i: 0"></div>
			<div class="triangle" style="--i: 1"></div>
			<div class="triangle" style="--i: 2"></div>
			<div class="triangle" style="--i: 3"></div>
			<div class="triangle" style="--i: 4"></div>
			<div class="triangle" style="--i: 5"></div>
			<div class="triangle" style="--i: 6"></div>
			<div class="triangle" style="--i: 7"></div>
			<div class="triangle" style="--i: 8"></div>
			<div class="triangle" style="--i: 9"></div>
			<div class="triangle" style="--i: 10"></div>
			<div class="triangle" style="--i: 11"></div>
		</div>
	</div>
	<div class="result-wrapper">
		<h2>Clip path for single segment:</h2>
		<div class="result">
			<code data-path-result></code>
		</div>
		<button data-btn>Hide guides</button>
	</div>
</div>


              
            
!

CSS

              
                @import url("https://fonts.googleapis.com/css?family=Montserrat:400,700");

* {
	box-sizing: border-box;
}

:root {
	--c1: rgba(250, 250, 250, 1);
	--c2: rgba(227, 227, 230, 1);
}

body {
	font-family: Montserrat, sans-serif;
	margin: 0;
	padding: 1rem;
	max-width: 100%;
	overflow-x: hidden;
	display: flex;
	justify-content: center;
	background-color: rgba(21, 21, 31, 1);
	color: var(--c1);
	
	@media (min-width: 45rem) {
		font-size: 1.1rem;
	}
}

.intro {
	@media (min-width: 45rem) {
		font-size: 1.4rem;
	}
}

h1 {
	@media (min-width: 45rem) {
		font-size: 3.5rem;
		margin: 0 0 1rem;
	}
}

h2 {
	font-size: 1.5rem;
	margin: 0 0 1rem;
}

.result {
	line-height: 1.4;
}

.grid {
	display: grid;
	gap: 1rem;
	max-width: 80rem;
	
	@media (min-width: 45rem) {
		grid-template-columns: auto minmax(0, 1fr);
		gap: 2rem 3rem;
	}
}

header {
	grid-column: 1 / -1;
	text-align: center;
	
	@media (min-width: 45rem) {
		padding: 3rem 0;
	}
}

.container {
	--height: min(90vw, 40rem);
	--s: 12;
	--angle: calc(360deg / var(--s));
	
	--y3: 10%; /* Clip y position */
	--a: calc(100% - var(--y3)); /* Adjacent side length */
	
	--x3: calc(var(--o) * (100% - var(--y3)));
	--x1: 15%;
	--y1: 0;
	--x2: 20%;
	--y2: 17%;
	--bg: repeating-conic-gradient(var(--c1), var(--c1), var(--angle), var(--c2) var(--angle), var(--c2) calc(var(--angle) * 2));
	
	/* Cutout sections */
	--ry1a: 20%;
	--ry1c: 62%;
	/* "free" values */
	--rx1b: 28%;
	--ry1b: 25%;
	/* Calculate x values for right side */
	--rx1a: calc(var(--o) * (100% - var(--ry1a)));
	--rx1c: calc(var(--o) * (100% - var(--ry1c)));
	--r1: var(--rx1a) var(--ry1a), var(--rx1b) var(--ry1b), var(--rx1c) var(--ry1c);
	
	--centerY1: 85%;
	--centerX1: calc(var(--o) * (100% - var(--centerY1)));
	--centerX2: 0;
	--centerY2: 90%;
	--center: var(--centerX1) var(--centerY1), var(--centerX2) var(--centerY2);
	
	/* Left side values should start at x = 0 */
	--ly1a: 70%;
	--ly1c: 50%;
	/* These are "free" values, can be anything */
	--lx1b: 13%;
	--ly1b: 45%;
	--l1: 0 var(--ly1a), var(--lx1b) var(--ly1b), 0 var(--ly1c);
	
	--ly2a: 40%;
	--ly2c: 15%;
	/* These are "free" values, can be anything */
	--lx2b: 9%;
	--ly2b: 30%;
	--l2: 0 var(--ly2a), var(--lx2b) var(--ly2b), 0 var(--ly2c);
	
	position: relative;
	width: var(--height);
	height: var(--height);
	opacity: 0;
}

.snowflake {
	&::before {
		--c1: rgba(205, 205, 255, 0.05);
		--c2: rgba(200, 200, 255, 0.12);
		
		content: '';
		position: absolute;
		inset: 0;
		background: repeating-conic-gradient(var(--c1), var(--c1), var(--angle), var(--c2) var(--angle), var(--c2) calc(var(--angle) * 2));
	}
}

.handle-group {
	width: 50%;
	height: 50%;
	position: absolute;
	left: 50%;
	top: 0;
}

.handle-group__inner {
	width: 100%;
	height: 100%;
	position: relative;
}

.handle {
	width: 20px;
	height: 20px;
	position: absolute;
	background-color: transparentize(darkorchid, 0.65);
	border-radius: 50%;
	border: 2px solid darkorchid;
	z-index: 1;
	transform: translate3d(-50%, -50%, 0);
	opacity: 0.9;
	
	&.is-active {
		background-color: deeppink;
		border: 2px solid deeppink;
		opacity: 0.8;
	}
}

.triangle {
	--clip: polygon(0 0, var(--x1) var(--y1), var(--x2) var(--y2), var(--x3) var(--y3), var(--r1), var(--center), var(--l1), var(--l2));
	--bg: repeating-conic-gradient(from 0deg at 0 100%, white, rgba(200, 200, 200, 1) var(--angle));
	
	width: 50%;
	height: 50%;
	position: absolute;
	top: 0;
	left: 50%;
	background: var(--bg);
	-webkit-clip-path: var(--clip);
	clip-path: var(--clip);
	transform: rotate(calc(var(--i) * var(--angle)));
	transform-origin: bottom left;
	
	&:nth-child(even) {
		transform: rotateY(180deg) rotate(calc((var(--i) - 1) * var(--angle)));
		background: repeating-conic-gradient(from 0deg at 0 100%, rgba(200, 200, 200, 1), white var(--angle));
	}
	
	&:first-child {
		background: rgba(180, 180, 205, 1);
	}
}

.result {
	display: grid;
	grid-template-columns: auto 1fr;
	gap: 0 0.25rem;
	padding: 1rem;
	background-color: rgba(12, 12, 20, 1);
	border-radius: 0.4rem;
	margin-bottom: 1rem;
	
	.current {
		color: deeppink;
	}
	
	@media (min-width: 45rem) {
		margin-bottom: 2rem;
	}
}

.handles-hidden {
	filter: drop-shadow(1rem 1rem 1rem rgba(0, 0, 0, 0.9));
	
	.snowflake::before {
		display: none;
	}
	
	.triangle:first-child {
		background: var(--bg);
	}
}

button {
	padding: 0.75rem 1rem;
	border: none;
	border-radius: 0.5rem;
	background: rgba(204, 211, 219, 1);
	cursor: pointer;
	font-family: inherit;
	font-size: 1.1rem;
	font-weight: 700;
	min-width: 10rem;
	transition: background 200ms;
	
	&:hover,
	&:focus {
		background: rgba(155, 155, 170, 1);
	}
	
	&.is-active {
		background: deeppink;
		
		&:hover,
		&:focus {
			background: rgba(155, 155, 170, 1);
		}
	}
}

              
            
!

JS

              
                const el = document.querySelector('.container')
const snowflake = document.querySelector('.snowflake')
const segments = getComputedStyle(el).getPropertyValue('--s')
const switcher = document.querySelector('[data-btn]')
const angle = 360 / parseFloat(segments)
const handles = [...document.querySelectorAll('.handle')]
const pathResult = document.querySelector('[data-path-result]')
const triangles = [...document.querySelectorAll('.triangle')]
const button = document.querySelector('[data-btn]')

const getTanFromDegrees = (angle) => {
	const tanFromDegrees = Math.tan(angle * Math.PI / 180)
	return tanFromDegrees.toFixed(3)
}

const initialize = () => {
	el.style.setProperty('--o', getTanFromDegrees(angle))
	el.style.opacity = 1
}

/* Set initial positions for handles */
const positionHandles = () => {
	handles.forEach((handle) => {
		const propX = getComputedStyle(el).getPropertyValue(handle.dataset.x)
		const propY = getComputedStyle(el).getPropertyValue(handle.dataset.y)

		handle.style.left = propX
		handle.style.top = propY
	})
}

const a = el.clientHeight / 2
const boundWidth = getTanFromDegrees(angle) * a + 10

const calculateCustomProperty = (relativeValue, parentValue) => {
	const value = (relativeValue / parentValue) * 100
	const valueAsPercentage = Math.round(value)
	return `${valueAsPercentage}%`
}

const setActiveState = (target) => {
	handles.forEach((handle) => {
		handle.classList.remove('is-active')
	})
	
	target.classList.add('is-active')
}

const setClipPathValue = (activeIndex) => {
	const values = handles.map((handle, index) => {
		const triangle = triangles[0]
		const { x, y } = handle.dataset
		const valueX = getComputedStyle(triangle).getPropertyValue(x)
		const valueY = getComputedStyle(triangle).getPropertyValue(y)
		const className = index == parseInt(activeIndex) ? 'current' : ''
		
		if (valueX) {
			return `<span class="${className}">${valueX} ${valueY}</span>`
		} else {
			return `<span class="${className}">0 ${valueY}</span>`
		}
	}).join(', ')
	
	return pathResult.innerHTML = `clip-path: polygon(0 0, ${values});`
}

setClipPathValue()


const onDragHandle = (pointermove) => {
	const { target, x, y } = pointermove
	
	/* Prevent error if target is dragged out of bounds */
	if (!target.parentElement) return
	
	const parentPosX = target.parentElement.getBoundingClientRect().left
	const parentPosY = target.parentElement.getBoundingClientRect().top
	const parentWidth = target.parentElement.clientWidth
	const parentHeight = target.parentElement.clientHeight
	const relativeX = x - parentPosX
	const relativeY = y - parentPosY
	const propertyX = target.dataset.x
	const propertyY = target.dataset.y
	
	const x1 = calculateCustomProperty(relativeX, parentWidth)
	const y1 = calculateCustomProperty(relativeY, parentHeight)

	/* Set custom properties */
	el.style.setProperty(propertyY, y1)
	
	if (target.dataset.xDrag) {
		el.style.setProperty(propertyX, x1)
	}
	
	setClipPathValue(target.dataset.index)
}

Draggable.create('.handle', {
	bounds: { top: -12, left: -12, width: boundWidth + 24, height: a + 24 },
	onDrag: onDragHandle,
	edgeResistance: 1,
	onPress: ({ target }) => {
		setActiveState(target)
		setClipPathValue(target.dataset.index)
	}
})

const toggleHandles = () => {
	const handleGroup = document.querySelector('.handle-group')
	
	el.classList.toggle('handles-hidden')
	button.classList.toggle('is-active')
	
	if (handleGroup.hidden) {
		button.innerText = 'Hide guides'
	} else {
		button.innerText = 'Show guides'
	}
	
	handleGroup.hidden = !handleGroup.hidden
}

initialize()
positionHandles()
button.addEventListener('click', toggleHandles)


              
            
!
999px

Console