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HTML

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About the <head>

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Insecure Resource

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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.

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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 

              
                <h1>Complicated to Organized</h1>
<p>(scroll to animate)</p>

<svg class="svg" version="1.1" xmlns="http://www.w3.org/2000/svg" id="svg" viewbox="0 0 340 340">
	<defs>
		<style type="text/css"><![CDATA[
			.point {
				fill: #2187dc;
			}

			.line {
				fill: none;
				stroke: #a6a6a6;
				stroke-width: 0.5;
				stroke-linejoin: round;
				stroke-miterlimit: 10;
			}
		]]></style>
	</defs>
	<g id="container" transform="translate(20,20)">
		<g id="lines"></g>
		<g id="points"></g>
	</g>
</svg>
!

CSS 

              
                body {
	font-family: Arial, sans-serif;
	margin: 0px;
	padding: 0px;
	text-align: center;
}

.svg {
	box-sizing: border-box;
	display: block;
	height: 300px;
	margin: 200px auto 800px auto;
	overflow: hidden;
	width: 300px;
}

@media screen and (max-height: 600px) {
	.svg {
		margin: 50px auto 300px auto;
	}
}
!

JS 

              
                var r = 5;
var first = true;
// plotting points completely randomly can look bad, so instead use a limited list of random shapes that have been curated and tweaked to look random but still visually pleasing
var randomShapes = [
	[
		{x: 185, y: 60},
		{x: 165, y: 100},
		{x: 250, y: 250},
		{x: 70, y: 35},
		{x: 160, y: 260},
		{x: 55, y: 160},
		{x: 60, y: 70},
		{x: 260, y: 195},
		{x: 230, y: 90},
	],
	[
		{x: 200, y: 80},
		{x: 120, y: 260},
		{x: 235, y: 155},
		{x: 80, y: 45},
		{x: 140, y: 240},
		{x: 135, y: 90},
		{x: 225, y: 185},
		{x: 250, y: 260},
		{x: 55, y: 195},
	],
	[
		{x: 40, y: 230},
		{x: 270, y: 175},
		{x: 95, y: 265},
		{x: 260, y: 60},
		{x: 175, y: 240},
		{x: 195, y: 270},
		{x: 245, y: 125},
		{x: 205, y: 70},
		{x: 55, y: 65},
	],
	[
		{x: 130, y: 220},
		{x: 80, y: 190},
		{x: 65, y: 65},
		{x: 245, y: 60},
		{x: 190, y: 85},
		{x: 60, y: 95},
		{x: 200, y: 265},
		{x: 220, y: 225},
		{x: 230, y: 120},
	],
	[
		{x: 250, y: 75},
		{x: 40, y: 225},
		{x: 150, y: 130},
		{x: 230, y: 155},
		{x: 210, y: 180},
		{x: 105, y: 40},
		{x: 245, y: 235},
		{x: 55, y: 90},
		{x: 125, y: 220},
	],
];
var randomPoints = randomShapes[Math.floor(Math.random() * randomShapes.length)];
var pointIndex = 0;

/**
 * jQuery scroll event handler - start animations when scrolling down from top
 */
function scrollDown() {
	if ($(window).scrollTop() >= 100) {
		// var reverse = $('#svg').is('.reverse');
		// animateAll(reverse);
		animateAll(!first);
		first = false;
		$('#svg').toggleClass('reverse');
		$(window).unbind('scroll', scrollDown);
		$(window).bind('scroll', scrollUp);
	}
}

/**
 * jQuery scroll event handler - start animations in reverse when scrolling up from bottom
 */
function scrollUp() {
	if ($(window).scrollTop() < 100) {
		animateAll(true);
		$(window).unbind('scroll', scrollUp);
		$(window).bind('scroll', scrollDown);
	}
}

$(function(){

	// draw a 3x3 grid of points with points at 30, 150, and 270
	for (var yIndex = 30; yIndex <= 280; yIndex += 120) {
		for (var xIndex = 30; xIndex <= 280; pointIndex++, xIndex += 120) {

			var y = yIndex;
			var x = xIndex;

			// move corner points in towards the center point to make more of a star shape instead of a square grid
			// if (y != 150 && x != 150) {
			// 	y += 25 * (150 - y) / 100;
			// 	x += 25 * (150 - x) / 100;
			// }

			// get points from curated random shape
			var randomY = randomPoints[pointIndex].y;
			var randomX = randomPoints[pointIndex].x;

			// generate random points
			// var randomY = 25 + Math.random() * 250;
			// var randomX = 25 + Math.random() * 250;

			// create point
			var point = createPoint(randomX, randomY, r);

			// add x and y animations and classes so we can easily identify them later
			addAnimate(point, 'cx', randomX, x).setAttribute('class', 'animate-x');
			addAnimate(point, 'cy', randomY, y).setAttribute('class', 'animate-y');
		}
	}

	// draw lines between all the points
	var points = document.querySelectorAll('.point');

	//figure out better way to do this programmatically instead of just listing them all out?
	connectPoints(points[0], points[1]);
	connectPoints(points[0], points[3]);
	connectPoints(points[0], points[4]);

	connectPoints(points[1], points[2]);
	connectPoints(points[1], points[3]);
	connectPoints(points[1], points[4]);
	connectPoints(points[1], points[5]);

	connectPoints(points[2], points[5]);
	connectPoints(points[2], points[6]);

	connectPoints(points[3], points[4]);
	connectPoints(points[3], points[6]);
	connectPoints(points[3], points[7]);

	connectPoints(points[4], points[5]);
	connectPoints(points[4], points[7]);
	connectPoints(points[4], points[8]);

	connectPoints(points[5], points[7]);
	connectPoints(points[5], points[8]);

	connectPoints(points[6], points[7]);

	connectPoints(points[7], points[8]);
	
	// scroll event listener
	$(window).bind('scroll', scrollDown);
});
!
999px

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