cssAudio - Activefile-genericCSS - ActiveGeneric - ActiveHTML - ActiveImage - ActiveJS - ActiveSVG - ActiveText - Activefile-genericVideo - ActiveLovehtmlicon-new-collectionicon-personicon-teamlog-outoctocatpop-outspinnerstartv

Pen Settings

CSS Base

Vendor Prefixing

Add External CSS

These stylesheets will be added in this order and before the code you write in the CSS editor. You can also add another Pen here, and it will pull the CSS from it. Try typing "font" or "ribbon" below.

Quick-add: + add another resource

Add External JavaScript

These scripts will run in this order and before the code in the JavaScript editor. You can also link to another Pen here, and it will run the JavaScript from it. Also try typing the name of any popular library.

Quick-add: + add another resource

Code Indentation

     

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.

            
              <div class="container">
	<div class="background"></div>
	<div id="particles"></div>
	<div class="foreground"></div>
</div>
            
          
!
            
              // Colour Variables
$magenta : #a42b52;
$blue : #224154;

// this loops through and generates a random animation for each particle so that hte wallpaper feels more unpredictable and less boring - this loop is also used to assign the animation to the right particle
@for $i from 1 through 100 {
	@keyframes particle-#{$i} {
		0% { transform: translateX( 0px ) translateY(0vh); opacity: 1; };
		30% { transform: translateX( (random(80) - 40) + px ) translateY(-10vh); opacity: 0.9; };
		40% { transform: translateX( (random(80) - 40) + px ) translateY(-20vh); opacity: 0.8; };
		50% { transform: translateX( (random(80) - 40) + px ) translateY(-30vh); opacity: 0.7; };
		60% { transform: translateX( (random(80) - 40) + px ) translateY(-40vh); opacity: 0.6; };
		70% { transform: translateX( (random(80) - 40) + px ) translateY(-50vh); opacity: 0.5; };
		100% { transform: translateX( (random(80) - 40) + px ) translateY(-100vh); opacity: 0; };
	}
	.container #particles span:nth-child(#{$i}) { animation-name: particle-#{$i}; }
}

// let's make the body full width and height and hide any overflow, also let's give it a minimun width so that the images don't get too small, maybe in a future I will make this fully responssive
html,body {
	position: relative;
	height: 100%;
	background-color: $blue;
	text-align: center;
	overflow: hidden;
	min-width: 768px;
}

.container {
	position: relative;
	width: 100%;
	height: 100%;
	.background {
		position: absolute;
		top: 0;
		left: 0;
		right: 0;
		bottom: 0;
		width: 100%;
		height: 100%;
		background-image: url('https://s3-us-west-2.amazonaws.com/s.cdpn.io/751678/my-illustration-background.png');
		background-position: center bottom;
		background-repeat: no-repeat;
		background-size: 100% auto;
		z-index: 0;
	}
	#particles {
		position: absolute;
		top:0;
		right:0;
		bottom: 0;
		left: 0;
		width: 100%;
		height: 100%;
		z-index: 1;
		span {
			display: inline-block;
			position: absolute;
			bottom: 0%;
			border-radius: 50%;
			background-color: $magenta;
			opacity: 1;
			box-shadow: 0px 0px 10px 5px rgba(164, 43, 82, 1);
			transform: translateX(0%) translateY(0%);
			animation-iteration-count: infinite;
			animation-timing-function: linear;
		}
	}
	.foreground {
		position: absolute;
		top: 0;
		left: 0;
		right: 0;
		bottom: 0;
		width: 100%;
		height: 100%;
		background-image: url('https://s3-us-west-2.amazonaws.com/s.cdpn.io/751678/my-illustration-foreground.png');
		background-position: center bottom;
		background-repeat: no-repeat;
		background-size: 100% auto;
		z-index: 2;
	}
}

            
          
!
            
              // Let's define the required varibles such as the number of particles to be created and an array to hold the particles
const particleContainer = document.getElementById('particles');
const Nparticles = 100;
let particles = [];

// function to return a random number from a given min and max
function rand(min, max) {
	return Math.floor(Math.random() * (max - min)) + min;
}

// This constructor will generate the required information for each particle and it's html structure to be added to the document
function createParticle(i) {
	this.id = i;
	this.width = rand(1,20) + 'px';
	this.height = this.width;
	this.x = rand(10,90) + '%';
	this.delay = rand(1,60) + 's';
	this.duration = rand(10,60) + 's';
	this.html = '<span style=" width: '+this.width+'; height: '+this.height+'; left: '+this.x+'; animation-delay: '+this.duration+'; animation-duration: '+this.duration+'; "></span>';
}

// Let's loop through till we reach the max number of particles and save them to the array and append them to the document
while ( particles.length <= Nparticles ) {
	let Particle = new createParticle(particles.length);
	particles.push(Particle);
	particleContainer.innerHTML += Particle.html;
}

// Hope you liked it and that has inspired you to create something awesome
            
          
!
999px
Loading ..................

Console