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Below is the html code for this video.
index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Joyful Cake & Balloon Animation</title>
<link rel="stylesheet" href="style.css">
</head>
<body>
<div class="cake">
<div class="layer candle"></div>
<div class="layer top-layer"></div>
<div class="layer layer-1"></div>
<div class="layer layer-2"></div>
<div class="layer layer-3"></div>
<div class="layer layer-4"></div>
</div>
<div class="wish-text"><span>HAPPY</span><span>BIRTHDAY</span><span>!!!</span></div>
<canvas id="canvas"></canvas>
<script src="index.js"></script>
</body>
</html>Below is the css code for this video.
style.css
@import url('https://fonts.googleapis.com/css2?family=Monoton&display=swap');
* {
margin: 0;
padding: 0;
}
body {
height: 100vh;
width: 100%;
background: radial-gradient(circle, #9ba77380, #dfd2bf80), linear-gradient(to bottom, #ff696180, #aec6cfbf), #402f1d;
overflow: hidden;
}
.cake {
position: absolute;
top: 45%;
left: 50%;
height: 350px;
width: 300px;
transform: translate(-50%, -45%);
margin: 0 auto;
z-index: -1;
}
.layer {
position: absolute;
height: 200px;
width: 300px;
border-radius: 150px / 75px;
margin: 0 auto;
}
.top-layer {
top: 0;
height: 150px;
background: #f1d2b7;
z-index: 6;
}
.layer-1 {
top: 0;
background: #d1696f;
z-index: 5;
}
.layer-2 {
top: 50px;
background: #baba74;
z-index: 4;
}
.layer-3 {
top: 100px;
background: #d1696f;
z-index: 3;
}
.layer-4 {
top: 150px;
background: #dc9944;
z-index: 2;
}
.candle {
top: -20px;
left: 135px;
height: 100px;
width: 30px;
background: #284004;
z-index: 7;
}
.candle::before {
content: "";
position: absolute;
top: -50px;
left: calc(50% - 15px);
height: 50px;
width: 30px;
background: #fede17;
border-radius: 80% / 70%;
animation: flameAnim 4s ease-in-out infinite;
}
@keyframes flameAnim {
0%, 100% {
transform: skewX(5deg);
box-shadow: 0 0 40px #ffffff, 0 0 75px #ffffff, 0 0 90px #ffffff, 0 0 100px #ffffff;
}
25% {
transform: skewX(-10deg);
box-shadow: 0 0 40px #ffffff, 0 0 75px #fede17, 0 0 90px #fede17, 0 0 100px #ffffff;
}
50% {
transform: skewX(15deg);
box-shadow: 0 0 40px #fede17, 0 0 75px #fede17, 0 0 90px #000000, 0 0 100px #ffffff;
}
75% {
transform: skewX(-2deg);
box-shadow: 0 0 40px #ffffff, 0 0 75px #ffffff, 0 0 90px #ffffff, 0 0 100px #000000;
}
}
.wish-text {
position: absolute;
top: 90%;
width: 100%;
color: #402f1d;
transform: translateY(-90%);
font-size: 5vw;
font-family: 'Monoton', sans-serif;
text-align: center;
animation: textAnim 4s alternate infinite;
}
@keyframes textAnim {
0% {
text-shadow: 0 1px 1px #ea0d0180, 0 -1px 1px #600fff;
text-indent: 0.75vw;
letter-spacing: 0.75vw;
z-index: 1;
}
50% {
text-shadow: 0 0 1px #402f1d;
}
100% {
text-shadow: 1px 0 1px #600fff80, -1px 0 1px #ea0d01;
text-indent: 0.25vw;
letter-spacing: 0.25vw;
z-index: -1;
}
}
.wish-text span:first-of-type {
margin-right: 2.5vw;
}
.wish-text span:last-of-type {
margin-left: 2.5vw;
}Below is the javascript code for this video.
index.js
var canvas = document.getElementById("canvas"), canvasCtx = canvas.getContext("2d"),
newcanvas = document.createElement("canvas"), newcanvasCtx = newcanvas.getContext("2d"),
canvaswidth, canvasheight, cx, cy, frames = 0, requestId = null, rad = (Math.PI / 180), kappa = 0.5,
x, y, balloons = [];
newcanvasCtx.strokeStyle = "#abcdef";
newcanvasCtx.lineWidth = 1;
function Balloon() {
this.r = randomIntFromInterval(20, 70);
this.R = 1.4 * this.r;
this.x = randomIntFromInterval(this.r, canvaswidth - this.r);
this.y = canvasheight + 2 * this.r;
this.a = this.r * 4.5;
this.pm = Math.random() < 0.5 ? -1 : 1;
this.speed = randomIntFromInterval(1.5, 4);
this.k = this.speed / 5;
this.hue = this.pm > 0 ? "210" : "10";
}
function draw() {
updateBalloons(newcanvasCtx);
canvasCtx.clearRect(0, 0, canvaswidth, canvasheight);
var img = newcanvas;
canvasCtx.drawImage(img, 0, 0);
requestId = window.requestAnimationFrame(draw);
}
function init() {
if (requestId) {
window.cancelAnimationFrame(requestId);
requestId = null;
}
canvaswidth = canvas.width = newcanvas.width = window.innerWidth;
cx = canvaswidth / 2;
canvasheight = canvas.height = newcanvas.height = window.innerHeight + 100;
cy = canvasheight;
newcanvasCtx.strokeStyle = "#abcdef";
newcanvasCtx.lineWidth = 1;
draw();
}
setTimeout(function () {
init();
window.addEventListener("resize", init, false);
}, 15);
function updateBalloons(ctx) {
frames += 1;
if (frames % 28 == 0 && balloons.length < 28) {
var balloon = new Balloon();
balloons.push(balloon);
}
ctx.clearRect(0, 0, canvaswidth, canvasheight);
for (let i = 0; i < balloons.length; i++) {
var b = balloons[i];
if (b.y > -b.a) { b.y -= b.speed; } else { b.y = parseInt(canvasheight + b.r + b.R); }
var p = thread(b, ctx);
b.cx = p.x;
b.cy = p.y - b.R;
ctx.fillStyle = gradient(p.x, p.y, b.r, b.hue);
drawBalloon(b, ctx);
}
}
function drawBalloon(b, ctx) {
var or = b.r * kappa,
p1 = { x: b.cx - b.r, y: b.cy }, pc11 = { x: p1.x, y: p1.y + or }, pc12 = { x: p1.x, y: p1.y - or },
p2 = { x: b.cx, y: b.cy - b.r }, pc21 = { x: b.cx - or, y: p2.y }, pc22 = { x: b.cx + or, y: p2.y },
p3 = { x: b.cx + b.r, y: b.cy }, pc31 = { x: p3.x, y: p3.y - or }, pc32 = { x: p3.x, y: p3.y + or },
p4 = { x: b.cx, y: b.cy + b.R }, pc41 = { x: p4.x + or, y: p4.y }, pc42 = { x: p4.x - or, y: p4.y },
t1 = { x: p4.x + 0.2 * b.r * Math.cos(70 * rad), y: p4.y + 0.2 * b.r * Math.sin(70 * rad) },
t2 = { x: p4.x + 0.2 * b.r * Math.cos(110 * rad), y: p4.y + 0.2 * b.r * Math.sin(110 * rad) };
ctx.beginPath();
ctx.moveTo(p4.x, p4.y);
ctx.bezierCurveTo(pc42.x, pc42.y, pc11.x, pc11.y, p1.x, p1.y);
ctx.bezierCurveTo(pc12.x, pc12.y, pc21.x, pc21.y, p2.x, p2.y);
ctx.bezierCurveTo(pc22.x, pc22.y, pc31.x, pc31.y, p3.x, p3.y);
ctx.bezierCurveTo(pc32.x, pc32.y, pc41.x, pc41.y, p4.x, p4.y);
ctx.lineTo(t1.x, t1.y);
ctx.lineTo(t2.x, t2.y);
ctx.closePath();
ctx.fill();
}
function thread(b, ctx) {
ctx.beginPath();
for (let i = b.a; i > 0; i -= 1) {
var t = i * rad;
x = b.x + b.pm * 50 * Math.cos(b.k * t - frames * rad);
y = b.y + b.pm * 25 * Math.sin(b.k * t - frames * rad) + 50 * t;
ctx.lineTo(x, y);
}
ctx.stroke();
return { x, y };
}
function gradient(x, y, r, hue) {
grd = canvasCtx.createRadialGradient(x - 0.5 * r, y - 1.7 * r, 0, x - 0.5 * r, y - 1.7 * r, r);
grd.addColorStop(0, 'hsla(' + hue + ', 100%, 75%, 0.9)');
grd.addColorStop(0.5, 'hsla(' + hue + ', 100%, 50%, 0.8)');
grd.addColorStop(1, 'hsla(' + hue + ', 100%, 25%, 0.7)');
return grd;
}
function randomIntFromInterval(min, max) { return ~~(Math.random() * (max - min + 1) + min); }Thanks for visiting