纯CSS实现加载效果

HTML标签

<div class="loading">
 <span></span>
 <span></span>
 <span></span>
 <span></span>
 <span></span>
</div>

CSS样式

<style>
.loading {
	width: 80px;
	height: 40px;
	margin: 0 auto;
	margin-top: 100px;
}

.loading span {
	display: inline-block;
	width: 8px;
	height: 100%;
	border-radius: 4px;
	background: lightgreen;
	-webkit-animation: load 1s ease infinite;
}

@-webkit-keyframes load {

	0%,
	100% {
		height: 40px;
		background: lightgreen;
	}

	50% {
		height: 70px;
		margin: -15px 0;
		background: lightblue;
	}
}

.loading span:nth-child(2) {
	-webkit-animation-delay: 0.2s;
}

.loading span:nth-child(3) {
	-webkit-animation-delay: 0.4s;
}

.loading span:nth-child(4) {
	-webkit-animation-delay: 0.6s;
}

.loading span:nth-child(5) {
	-webkit-animation-delay: 0.8s;
}
</style>