Website Loading Animation HTML CSS

February 11, 2023 TheBlog Person

Are you looking for a way to add a touch of creativity and excitement to your website’s loading experience? Look no further! In this blog, we’ll walk you through the steps to create a stunning loading animation using HTML and CSS.

For additional HTML, CSS, and JavaScript projects, see our website.

Whether you’re a beginner or an experienced developer, this tutorial is designed to help you bring your website to life with engaging and eye-catching animations. From design inspiration to implementation, we’ve got you covered. So let’s dive in and learn how to create a website loading animation with HTML and CSS!

Source Code:

HTML:


<!DOCTYPE html>
<html lang="en" >
<head>
  <meta charset="UTF-8">
  <title>Building Loader - CSS</title>
  <link rel="stylesheet" href="./style.css">

</head>
<body>
<!-- partial:index.partial.html -->
<div class="content">
  <div class="cuboid">
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
  </div>
  <div class="cuboid">
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
  </div>
  <div class="cuboid">
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
  </div>
  <div class="cuboid">
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
  </div>
  <div class="cuboid">
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
  </div>
  <div class="cuboid">
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
  </div>
  <div class="cuboid">
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
  </div>
  <div class="cuboid">
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
  </div>
  <div class="cuboid">
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
  </div>
  <div class="cuboid">
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
  </div>
  <div class="cuboid">
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
  </div>
  <div class="cuboid">
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
  </div>
  <div class="cuboid">
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
  </div>
  <div class="cuboid">
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
  </div>
  <div class="cuboid">
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
  </div>
  <div class="cuboid">
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
    <div class="side"></div>
  </div>
</div>
<!-- partial -->
  
</body>
</html>

——————————
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CSS:

@property --color {
	syntax: "<percentage>";
	inherits: false;
	initial-value: 10%;
}

@property --tone {
	syntax: "<number>";
	inherits: false;
	initial-value: 0;
}

:root {
	--bg: #111;
	--size: 8;
	--speed: 2;
	--hue: 0;
	--tone: 0;
}

* {
	transform-style: preserve-3d;
	box-sizing: border-box;
}

body {
	margin: 0;
	padding: 0;
	width: 100vw;
	height: 100vh;
	overflow: hidden;
	display: flex;
	align-items: center;
	justify-content: center;
	perspective: 250vmin;
	background: var(--bg);
}

/*
body:after {
	content: "";
	position: absolute;
	background: 
		linear-gradient(37.5deg, var(--bg) 28%, #fff0 35%), 
		linear-gradient(-37.5deg, var(--bg) 28%, #fff0 35%);
	width: 100%;
	height: 100%;
	opacity: 0.75;
}
*/

.content {
	width: calc(var(--size) * 6vmin);
	height: calc(var(--size) * 6vmin);
	transform: rotateX(45deg) rotateZ(45deg);
}

.cuboid {
	--height: var(--size);
	--width: var(--size);
	--depth: calc(var(--size) * 5);
	--delay: calc(calc(var(--speed) / 16) * 1s);
	--sat: var(--color, 50%);
	--hue: var(--tone, 0);
	--win: calc(calc(var(--size) / 6) * 1vmin);
	height: calc(var(--height) * 1vmin);
	width: calc(var(--width) * 1vmin);
	position: absolute;
	transform: translate3d(0vmin, 0vmin, 0vmin);
	animation: grow calc(var(--speed) * 1s) ease 0s infinite,
		colors calc(var(--speed) * 2.25s) linear 0s infinite;
	transition: --color calc(var(--speed) * 1s) 0s,
		--tone calc(var(--speed) * 2, 25s) 0s;
}

.cuboid .side {
	position: absolute;
	top: 50%;
	left: 50%;
	height: 100%;
	width: 100%;
	border-radius: 2px;
}

.cuboid .side:nth-of-type(1) {
	transform: translate3d(-50%, -50%, calc(var(--depth) * 0.5vmin));
	background: linear-gradient(-125deg, #fff8, #fff0),
		hsl(var(--hue), var(--sat), 55%);
	border: calc(calc(var(--size) / 12) * 1vmin) solid #fff0;
	border-color: #6e6e6e #958d9b #999999 #b3b3b3;
}

.cuboid .side:nth-of-type(2) {
	transform: translate3d(-50%, -50%, calc(var(--depth) * -0.5vmin))
		rotateY(180deg);
	background: hsl(var(--hue), var(--sat), 25%);
	display: none;
}

.cuboid .side:nth-of-type(3) {
	width: calc(var(--depth) * 1vmin);
	transform: translate(-50%, -50%) rotateY(90deg)
		translate3d(0, 0, calc(var(--width) * 0.5vmin));
	background: linear-gradient(135deg, #fff6, #fff0 50%),
		linear-gradient(90deg, #fff0, var(--bg) 100%),
		repeating-conic-gradient(
			from 0deg at var(--win) calc(var(--win) * 1.5),
			#808e93,
			#bbbab0 25%,
			#fff0 0 100%
		),
		hsl(var(--hue), var(--sat), 40%);
	background-repeat: no-repeat, no-repeat, repeat, no-repeat;
	background-size: 100% 100%, 100% 100%,
		calc(calc(var(--size) / 2) * 1.35vmin) calc(calc(var(--size) / 3.2) * 1vmin),
		100% 100%;
	background-position: 0 0, 0 0, 0 calc(calc(var(--size) / 15) * 1vmin), 0 0;
}

.cuboid .side:nth-of-type(4) {
	width: calc(var(--depth) * 1vmin);
	transform: translate(-50%, -50%) rotateY(-90deg)
		translate3d(0, 0, calc(var(--width) * 0.5vmin));
	background: linear-gradient(
		-90deg,
		hsl(var(--hue), var(--sat), 40%) 20%,
		var(--bg) 100%
	);
}

.cuboid .side:nth-of-type(5) {
	height: calc(var(--depth) * 1vmin);
	transform: translate(-50%, -50%) rotateX(90deg)
		translate3d(0, 0, calc(var(--height) * 0.5vmin));
	background: linear-gradient(
		45deg,
		hsl(var(--hue), var(--sat), 20%) 20%,
		var(--bg) 100%
	);
}

.cuboid .side:nth-of-type(6) {
	height: calc(var(--depth) * 1vmin);
	transform: translate(-50%, -50%) rotateX(-90deg)
		translate3d(0, 0, calc(var(--height) * 0.5vmin));
	background: linear-gradient(180deg, #fff0, var(--bg) 100%),
		repeating-conic-gradient(
			from 0deg at calc(var(--win) * 0.5) calc(var(--win) * 2.75),
			#43484a,
			#706f68 25%,
			#fff0 0 100%
		),
		hsl(var(--hue), var(--sat), 20%);
	background-repeat: no-repeat, repeat, no-repeat;
	background-size: 100% 100%,
		calc(calc(var(--size) / 3.2) * 1vmin) calc(calc(var(--size) / 2) * 1.35vmin),
		100% 100%;
	background-position: 0 0,
		calc(calc(var(--size) / 1.065) * 1vmin) calc(calc(var(--size) / 7) * 1vmin),
		0 0;
}

.cuboid .side:nth-of-type(1):before {
	content: " ";
	position: absolute;
	width: 80%;
	height: 80%;
	left: 10%;
	top: 10%;
	box-sizing: border-box;
	background: linear-gradient(45deg, #95899e 0 5%, #fff0 0 95%, #c3bcc8 0 100%),
		conic-gradient(
			from -90deg at 90% 90%,
			#7d8b91,
			#c1beb3 25%,
			#948c99 0 62.5%,
			#545157 0 100%
		);
}

.cuboid:nth-child(2) {
	left: calc(calc(var(--size) / 4) * 5vmin);
	animation-delay: calc(var(--delay) * -15);
}

.cuboid:nth-child(3) {
	left: calc(calc(var(--size) / 4) * 10vmin);
	animation-delay: calc(var(--delay) * -14);
}

.cuboid:nth-child(4) {
	left: calc(calc(var(--size) / 4) * 15vmin);
	animation-delay: calc(var(--delay) * -13);
}

.cuboid:nth-child(5) {
	left: calc(calc(var(--size) / 4) * 20vmin);
	animation-delay: calc(var(--delay) * -12);
}

.cuboid:nth-child(6) {
	left: calc(calc(var(--size) / 4) * 20vmin);
	top: calc(calc(var(--size) / 4) * 5vmin);
	animation-delay: calc(var(--delay) * -11);
}

.cuboid:nth-child(7) {
	left: calc(calc(var(--size) / 4) * 20vmin);
	top: calc(calc(var(--size) / 4) * 10vmin);
	animation-delay: calc(var(--delay) * -10);
}

.cuboid:nth-child(8) {
	left: calc(calc(var(--size) / 4) * 20vmin);
	top: calc(calc(var(--size) / 4) * 15vmin);
	animation-delay: calc(var(--delay) * -9);
}

.cuboid:nth-child(9) {
	left: calc(calc(var(--size) / 4) * 20vmin);
	top: calc(calc(var(--size) / 4) * 20vmin);
	animation-delay: calc(var(--delay) * -8);
}

.cuboid:nth-child(10) {
	top: calc(calc(var(--size) / 4) * 20vmin);
	left: calc(calc(var(--size) / 4) * 15vmin);
	animation-delay: calc(var(--delay) * -7);
}

.cuboid:nth-child(11) {
	top: calc(calc(var(--size) / 4) * 20vmin);
	left: calc(calc(var(--size) / 4) * 10vmin);
	animation-delay: calc(var(--delay) * -6);
}

.cuboid:nth-child(12) {
	top: calc(calc(var(--size) / 4) * 20vmin);
	left: calc(calc(var(--size) / 4) * 5vmin);
	animation-delay: calc(var(--delay) * -5);
}

.cuboid:nth-child(13) {
	top: calc(calc(var(--size) / 4) * 20vmin);
	left: 0;
	animation-delay: calc(var(--delay) * -4);
}

.cuboid:nth-child(14) {
	top: calc(calc(var(--size) / 4) * 15vmin);
	animation-delay: calc(var(--delay) * -3);
}

.cuboid:nth-child(15) {
	top: calc(calc(var(--size) / 4) * 10vmin);
	animation-delay: calc(var(--delay) * -2);
}

.cuboid:nth-child(16) {
	top: calc(calc(var(--size) / 4) * 5vmin);
	animation-delay: calc(var(--delay) * -1);
}

@keyframes grow {
	0% {
		--color: 60%;
		transform: translateZ(calc(var(--size) * 1vmin));
	}
	90% {
		--color: 10%;
		transform: translateZ(calc(var(--size) * -2vmin));
	}
	100% {
		--color: 60%;
		transform: translateZ(calc(var(--size) * 1vmin));
	}
}

@keyframes colors {
	0% {
		--tone: 360;
	}
	100% {
		--tone: 0;
	}
}

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