css之loading旋转加载

1.效果

2.代码

	<!-- 检测动画 -->
					<view class="sk-chase">
						<view class="sk-chase-dot"></view>
						<view class="sk-chase-dot"></view>
						<view class="sk-chase-dot"></view>
						<view class="sk-chase-dot"></view>
						<view class="sk-chase-dot"></view>
						<view class="sk-chase-dot"></view>
					</view>





<style>
	// 检测等待动画
	.sk-chase {
		width: 40px;
		height: 40px;
		position: relative;
		animation: sk-chase 2.5s infinite linear both;
	}

	.sk-chase-dot {
		width: 100%;
		height: 100%;
		position: absolute;
		left: 0;
		top: 0;
		animation: sk-chase-dot 2.0s infinite ease-in-out both;
	}

	.sk-chase-dot:before {
		content: '';
		display: block;
		width: 25%;
		height: 25%;
		background-color: #1677FF;
		border-radius: 100%;
		animation: sk-chase-dot-before 2.0s infinite ease-in-out both;
	}

	.sk-chase-dot:nth-child(1) {
		animation-delay: -1.1s;
	}

	.sk-chase-dot:nth-child(2) {
		animation-delay: -1.0s;
	}

	.sk-chase-dot:nth-child(3) {
		animation-delay: -0.9s;
	}

	.sk-chase-dot:nth-child(4) {
		animation-delay: -0.8s;
	}

	.sk-chase-dot:nth-child(5) {
		animation-delay: -0.7s;
	}

	.sk-chase-dot:nth-child(6) {
		animation-delay: -0.6s;
	}

	.sk-chase-dot:nth-child(1):before {
		animation-delay: -1.1s;
	}

	.sk-chase-dot:nth-child(2):before {
		animation-delay: -1.0s;
	}

	.sk-chase-dot:nth-child(3):before {
		animation-delay: -0.9s;
	}

	.sk-chase-dot:nth-child(4):before {
		animation-delay: -0.8s;
	}

	.sk-chase-dot:nth-child(5):before {
		animation-delay: -0.7s;
	}

	.sk-chase-dot:nth-child(6):before {
		animation-delay: -0.6s;
	}

	@keyframes sk-chase {
		100% {
			transform: rotate(360deg);
		}
	}

	@keyframes sk-chase-dot {

		80%,
		100% {
			transform: rotate(360deg);
		}
	}

	@keyframes sk-chase-dot-before {
		50% {
			transform: scale(0.4);
		}

		100%,
		0% {
			transform: scale(1.0);
		}
	}
</style>