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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.

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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.

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Use npm Packages

We can make npm packages available for you to use in your JavaScript. We use webpack to prepare them and make them available to import. We'll also process your JavaScript with Babel.

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HTML Settings

Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

              <canvas id="rain"></canvas>
<link href="" rel="stylesheet">

<div id="container">
  <div id="options">
    <button class="raindrop">About us</button>
    <button class="raindrop">Learn More</button>
    <button class="raindrop">Contact</button>
  padding: 0px;
  margin: 0px;
  height: 100%;
  overflow: hidden;
  background: black;
  font-family: 'Gayathri', sans-serif;

  position: absolute;
  left: 0px;
  top: 0px;
  user-select: none;

  text-align: center;
  margin-top: 130px;
  font-size: 42px;
  position: relative;
  color: white;

  text-align: center;
  margin-top: 50px;
  position: relative;
  z-index: 2;

#options button{
  padding: 20px;
  font-size: 22px;
  margin-left: 20px;
  margin-right: 20px;
  border-radius: 5px;
  cursor: pointer;
  background: white;
  border: 1px solid #95a5a6;

@media only screen and (max-width: 600px) {
  .raindrop:nth-child(3) {
    display: none;
              var c = document.getElementById("rain");

c.width = window.innerWidth;
c.height = window.innerHeight;

var ctx = c.getContext("2d");

let rainDrops = [];
let elements = document.getElementsByClassName("raindrop");
let length = 30;
let speed = 15;

let angle = 90 * Math.PI / 180;
let angleSin = Math.sin(angle);
let angleCos = Math.cos(angle);

let spawnInterval = setInterval(newDrop, 50);

window.addEventListener("resize", onResize);

document.addEventListener("visibilitychange", function() {
  if (document.hidden) {
  } else {
    spawnInterval = setInterval(newDrop, 50);

function RainDrop(x, y, angle) {
  this.x = x;
  this.y = y;

function newDrop() {
  for (let x = 0; x < 50; x++) {
    new RainDrop(Math.random() * c.width, -40 - 100 * Math.random(), angle);


function update() {
  for (let x = 0; x < rainDrops.length; x++) {
    let drop = rainDrops[x];
    drop.x += speed * angleCos;
    drop.y += speed * angleSin;

    drop.endX = drop.x + length * angleCos;
    drop.endY = drop.y + length * angleSin;

    if (drop.y > c.height) {
      rainDrops.splice(x, 1);


function draw() {
  ctx.clearRect(0, 0, c.width, c.height);

  ctx.lineWidth = 1;
  ctx.lineCap = "round";
  ctx.strokeStyle = "#0984e3";

  let gradient = ctx.createLinearGradient(0, 0, 0, c.height);

  gradient.addColorStop(0, "#00a8ff");
  gradient.addColorStop(0.6, "#00a8ff");
  gradient.addColorStop(1, "white");

  ctx.strokeStyle = gradient;

  for (let i = 0; i < rainDrops.length; i++) {
    ctx.moveTo(Math.floor(rainDrops[i].x), Math.floor(rainDrops[i].y));
    ctx.lineTo(Math.floor(rainDrops[i].endX), Math.floor(rainDrops[i].endY));


function onResize() {
  c.width = window.innerWidth;
  c.height = window.innerHeight;

function clearRegions() {
  ctx.globalCompositeOperation = "destination-out";

  for (let i = 0; i < elements.length; i++) {
    let boundingBox = elements[i].getBoundingClientRect();
    let yDistanceBottom = c.height - boundingBox.bottom;
    let yDistanceTop = c.height -;

    let bottomLeftX =
      boundingBox.left + yDistanceBottom * Math.tan(Math.PI / 2 - angle);
    let bottomRightX =
      boundingBox.right + yDistanceBottom * Math.tan(Math.PI / 2 - angle);

    let bottomLeftX2 =
      boundingBox.left + yDistanceTop * Math.tan(Math.PI / 2 - angle);
    let bottomRightX2 =
      boundingBox.right + yDistanceTop * Math.tan(Math.PI / 2 - angle);

    //From bottom of element to edge of page
    ctx.moveTo(boundingBox.left, boundingBox.bottom);
    ctx.lineTo(bottomLeftX, c.height);
    ctx.lineTo(bottomRightX, c.height);
    ctx.lineTo(boundingBox.right, boundingBox.bottom);

    //From top of element to edge of page
    ctx.lineTo(bottomLeftX2, c.height);
    ctx.lineTo(bottomRightX2, c.height);

  ctx.globalCompositeOperation = "source-over";

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