波纹效果

2020-09-10 21:01:00 作者：互联网

<!DOCTYPE html>
<html lang="en">
	<head>
		<meta charset="UTF-8" />
		<meta name="viewport" content="width=device-width, initial-scale=1.0" />
		<title>Document</title>
		<style>
			.dotted {
				width: 8px;
				height: 8px;
				background-color: #09f;
				border-radius: 50%;
			}
			.city div[class^='pulse'] {
				position: absolute;
				top: 50%;
				left: 50%;
				transform: translate(-50%, -50%);
				width: 8px;
				height: 8px;
				box-shadow: 0 0 12px #009dfd;
				border-radius: 50%;
				animation: pulse 1.2s linear infinite;
			}

			.city div[class='pulse1'] {
				animation-delay: 0.4s;
			}
			.city div[class='pulse2'] {
				animation-delay: 0.8s;
			}

			@keyframes pulse {
				0% {
				}

				70% {
					width: 40px;
					height: 40px;
					opacity: 1;
				}

				100% {
					width: 70px;
					height: 70px;
					opacity: 0;
				}
			}
		</style>
	</head>
	<body>
		<div class="map">
			<div class="city">
				<div class="dotted"></div>
				<div class="pulse1"></div>
				<div class="pulse2"></div>
				<div class="pulse3"></div>
			</div>
		</div>
	</body>
</html>

标签：city,效果,50%,pulse,height,width,8px,波纹
来源： https://www.cnblogs.com/MarkJacobs/p/13648355.html