Простые загрузчики CSS - пример html js css



Книга Простые загрузчики CSS

Простые загрузчики CSS (HTML код)


<div class="page">
	<header class="header">
		<h1 class="header-title">Simple CSS loaders</h1>
		<p class="header-subtitle">single html element css animation</p>
	</header>
	
	<main class="container">
		<div class="item">
			<i class="loader --2"></i>
		</div>
		<div class="item">
			<i class="loader --9"></i>
		</div>
		<div class="item">
			<i class="loader --3"></i>
		</div>
		
		<div class="item">
			<i class="loader --4"></i>
		</div>
		<div class="item">
			<i class="loader --1"></i>
		</div>
		<div class="item">
			<i class="loader --5"></i>
		</div>
		
		<div class="item">
			<i class="loader --6"></i>
		</div>
		<div class="item">
			<i class="loader --8"></i>
		</div>
		<div class="item">
			<i class="loader --7"></i>
		</div>
	</main>
</div>

Простые загрузчики CSS (CSS код)



.loader {
	--color: white;
	--size-mid: 6vmin;
	--size-dot: 1.5vmin;
	--size-bar: 0.4vmin;
	--size-square: 3vmin;
	
	display: block;
	position: relative;
	width: 50%;
	display: grid;
	place-items: center;
}

.loader::before,
.loader::after {
	content: '';
	box-sizing: border-box;
	position: absolute;
}

/**
	loader --1
**/
.loader.--1::before {
	width: var(--size-mid);
	height: var(--size-mid);
	border: 4px solid var(--color);
	border-top-color: transparent;
	border-radius: 50%;
	-webkit-animation: loader-1 1s linear infinite;
	        animation: loader-1 1s linear infinite;
}

.loader.--1::after {
	width: calc(var(--size-mid) - 2px);
	height: calc(var(--size-mid) - 2px);
	border: 2px solid transparent;
	border-top-color: var(--color);
	border-radius: 50%;
	animation: loader-1 0.6s linear reverse infinite;
}

@-webkit-keyframes loader-1 {
	100% {
		transform: rotate(1turn);
	}
}

@keyframes loader-1 {
	100% {
		transform: rotate(1turn);
	}
}

/**
	loader --2
**/
.loader.--2::before,
.loader.--2::after {
	width: var(--size-dot);
	height: var(--size-dot);
	background-color: var(--color);
	border-radius: 50%;
	opacity: 0;
	-webkit-animation: loader-2 0.8s cubic-bezier(0.2, 0.32, 0, 0.87) infinite;
	        animation: loader-2 0.8s cubic-bezier(0.2, 0.32, 0, 0.87) infinite;
}

.loader.--2::after {
	-webkit-animation-delay: 0.3s;
	        animation-delay: 0.3s;
}

@-webkit-keyframes loader-2 {
	0%, 80%, 100% {
		opacity: 0;
	}
	
	33% {
		opacity: 1;
	}
	
	0%, 100% {
		transform: translateX(-4vmin);
	}
	
	90% {
		transform: translateX(4vmin);
	}
}

@keyframes loader-2 {
	0%, 80%, 100% {
		opacity: 0;
	}
	
	33% {
		opacity: 1;
	}
	
	0%, 100% {
		transform: translateX(-4vmin);
	}
	
	90% {
		transform: translateX(4vmin);
	}
}

/**
	loader --3
**/
.loader.--3::before,
.loader.--3::after {
	width: var(--size-dot);
	height: var(--size-dot);
	background-color: var(--color);
	border-radius: 50%;
	-webkit-animation: loader-3 1.2s ease-in-out infinite;
	        animation: loader-3 1.2s ease-in-out infinite;
}

.loader.--3::before {
	left: calc(50% - 1.6vmin - var(--size-dot));
}

.loader.--3::after {
	left: calc(50% + 1.6vmin);
	-webkit-animation-delay: -0.4s;
	        animation-delay: -0.4s;
}

@-webkit-keyframes loader-3 {
	0%, 100% {
		transform: translateY(-2.6vmin);
	}
	
	44% {
		transform: translateY(2.6vmin);
	}
}

@keyframes loader-3 {
	0%, 100% {
		transform: translateY(-2.6vmin);
	}
	
	44% {
		transform: translateY(2.6vmin);
	}
}

/**
	loader --4
**/
.loader.--4::before {
	height: var(--size-bar);
	width: 6vmin;
	background-color: var(--color);
	-webkit-animation: loader-4 0.8s cubic-bezier(0, 0, 0.03, 0.9) infinite;
	        animation: loader-4 0.8s cubic-bezier(0, 0, 0.03, 0.9) infinite;
}

@-webkit-keyframes loader-4 {
	0%, 44%, 88.1%, 100% {
		transform-origin: left;
	}
	
	0%, 100%, 88% {
		transform: scaleX(0);
	}
	
	44.1%, 88% {
		transform-origin: right;
	}
	
	33%, 44% {
		transform: scaleX(1);
	}
}

@keyframes loader-4 {
	0%, 44%, 88.1%, 100% {
		transform-origin: left;
	}
	
	0%, 100%, 88% {
		transform: scaleX(0);
	}
	
	44.1%, 88% {
		transform-origin: right;
	}
	
	33%, 44% {
		transform: scaleX(1);
	}
}

/**
	loader --5
**/
.loader.--5::before,
.loader.--5::after {
	height: 3vmin;
	width: var(--size-bar);
	background-color: var(--color);
	-webkit-animation: loader-5 0.6s cubic-bezier(0, 0, 0.03, 0.9) infinite;
	        animation: loader-5 0.6s cubic-bezier(0, 0, 0.03, 0.9) infinite;
}

.loader.--5::before {
	left: calc(50% - 1vmin);
	top: calc(50% - 3vmin);
}

.loader.--5::after {
	left: calc(50% + 1vmin);
	top: calc(50% - 1vmin);
	-webkit-animation-delay: 0.2s;
	        animation-delay: 0.2s;
}

@-webkit-keyframes loader-5 {
	0%, 88%, 100% {
		opacity: 0;
	}
	
	0% {
		transform: translateY(-6vmin);
	}
	
	33% {
		opacity: 1;
	}
	
	33%, 88% {
		transform: translateY(3vmin);
	}
}

@keyframes loader-5 {
	0%, 88%, 100% {
		opacity: 0;
	}
	
	0% {
		transform: translateY(-6vmin);
	}
	
	33% {
		opacity: 1;
	}
	
	33%, 88% {
		transform: translateY(3vmin);
	}
}

/**
	loader --6
**/
.loader.--6::before {
	width: var(--size-square);
	height: var(--size-square);
	background-color: var(--color);
	top: calc(50% - var(--size-square));
	left: calc(50% - var(--size-square));
	-webkit-animation: loader-6 2.4s cubic-bezier(0, 0, 0.24, 1.21) infinite;
	        animation: loader-6 2.4s cubic-bezier(0, 0, 0.24, 1.21) infinite;
}

@-webkit-keyframes loader-6 {
	0%, 100% {
		transform: none;
	}
	
	25% {
		transform: translateX(100%);
	}
	
	50% {
		transform: translateX(100%) translateY(100%);
	}
	
	75% {
		transform: translateY(100%);
	}
}

@keyframes loader-6 {
	0%, 100% {
		transform: none;
	}
	
	25% {
		transform: translateX(100%);
	}
	
	50% {
		transform: translateX(100%) translateY(100%);
	}
	
	75% {
		transform: translateY(100%);
	}
}

/**
	loader --7
**/
.loader.--7::before,
.loader.--7::after {
	width: var(--size-square);
	height: var(--size-square);
	background-color: var(--color);
}

.loader.--7::before {
	top: calc(50% - var(--size-square));
	left: calc(50% - var(--size-square));
	-webkit-animation: loader-6 2.4s cubic-bezier(0, 0, 0.24, 1.21) infinite;
	        animation: loader-6 2.4s cubic-bezier(0, 0, 0.24, 1.21) infinite;
}

.loader.--7::after {
	top: 50%;
	left: 50%;
	-webkit-animation: loader-7 2.4s cubic-bezier(0, 0, 0.24, 1.21) infinite;
	        animation: loader-7 2.4s cubic-bezier(0, 0, 0.24, 1.21) infinite;
}

@-webkit-keyframes loader-7 {
	0%, 100% {
		transform: none;
	}
	
	25% {
		transform: translateX(-100%);
	}
	
	50% {
		transform: translateX(-100%) translateY(-100%);
	}
	
	75% {
		transform: translateY(-100%);
	}
}

@keyframes loader-7 {
	0%, 100% {
		transform: none;
	}
	
	25% {
		transform: translateX(-100%);
	}
	
	50% {
		transform: translateX(-100%) translateY(-100%);
	}
	
	75% {
		transform: translateY(-100%);
	}
}

/**
	loader --8
**/
.loader.--8::before,
.loader.--8::after {
	width: var(--size-dot);
	height: var(--size-dot);
	border-radius: 50%;
	background-color: var(--color);
}

.loader.--8::before {
	top: calc(50% + 4vmin);
	-webkit-animation: loader-8-1 0.8s cubic-bezier(0.06, 0.01, 0.49, 1.18) infinite;
	        animation: loader-8-1 0.8s cubic-bezier(0.06, 0.01, 0.49, 1.18) infinite;
}

.loader.--8::after {
	opacity: 0;
	top: calc(50% - 2vmin);
	-webkit-animation: loader-8-2 0.8s cubic-bezier(0.46,-0.1, 0.27, 1.07) 0.2s infinite;
	        animation: loader-8-2 0.8s cubic-bezier(0.46,-0.1, 0.27, 1.07) 0.2s infinite;
}

@-webkit-keyframes loader-8-1 {
	0%, 55%, 100% {
		opacity: 0;
	}
	
	0% {
		transform: scale(0.2);
	}
	
	22% {
		opacity: 1;
	}
	
	33%, 55% {
		transform: scale(1) translateY(-6vmin);
	}
}

@keyframes loader-8-1 {
	0%, 55%, 100% {
		opacity: 0;
	}
	
	0% {
		transform: scale(0.2);
	}
	
	22% {
		opacity: 1;
	}
	
	33%, 55% {
		transform: scale(1) translateY(-6vmin);
	}
}

@-webkit-keyframes loader-8-2 {
	0%, 100% {
		opacity: 0;
	}
	
	33% {
		opacity: 0.3;
	}
	
	0% {
		transform: scale(0);
	}
	
	100% {
		transform: scale(4);
	}
}

@keyframes loader-8-2 {
	0%, 100% {
		opacity: 0;
	}
	
	33% {
		opacity: 0.3;
	}
	
	0% {
		transform: scale(0);
	}
	
	100% {
		transform: scale(4);
	}
}

/**
	loader --9
**/
.loader.--9::before,
.loader.--9::after {
	width: var(--size-dot);
	height: var(--size-dot);
	border-radius: 50%;
	background-color: var(--color);
	-webkit-animation: loader-9 0.42s cubic-bezier(0.39, 0.31, 0, 1.11) infinite;
	        animation: loader-9 0.42s cubic-bezier(0.39, 0.31, 0, 1.11) infinite;
}

.loader.--9::before {
	left: calc(50% - var(--size-dot) - 1.6vmin);
}

.loader.--9::after {
	left: calc(50% + 1.6vmin);
	-webkit-animation-delay: 0.12s;
	        animation-delay: 0.12s;
}

@-webkit-keyframes loader-9 {
	0%, 100% {
		opacity: 0;
	}
	
	0% {
		transform: translate(-4vmin, -4vmin);
	}
	
	66% {
		opacity: 1;
	}
	
	66%, 100% {
		transform: none;
	}
}

@keyframes loader-9 {
	0%, 100% {
		opacity: 0;
	}
	
	0% {
		transform: translate(-4vmin, -4vmin);
	}
	
	66% {
		opacity: 1;
	}
	
	66%, 100% {
		transform: none;
	}
}

/**
	miscs
**/

.container {
	display: grid;
	grid-template-columns: repeat(3, 18vmin);
	grid-template-rows: repeat(3, 18vmin);
	grid-gap: 1vmin;
}

.item	{
	background: rgba(255, 255, 255, 0.1);
	display: grid;
	place-items: center;
	border-radius: 4px;
	transition: opacity 0.4s ease;
}

.container:hover .item {
	opacity: 0.3;
}

.container:hover .item:hover {
	opacity: 1;
}

.page {
	margin: auto;
}

.header {
	margin-bottom: 4vmin;
}

.header-title {
	font-size: 3.75vmin;
}

.header-subtitle {
	font-size: 2vmin;
	text-transform: uppercase;
	opacity: 0.6;
}

html, body {
	display: flex;
	width: 100%;
	height: 100%;
	background-image: linear-gradient(to right top, #051937, #004d7a, #008793, #00bf72, #a8eb12);
	font-family: 'Noto Sans', sans-serif;
	color: white;
	text-align: center;
	letter-spacing: 0.3px;
}


Простые загрузчики CSS (Результат кода)

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