css-地图波纹扩散效果 

<!DOCTYPE html>
<html lang="zh-CN">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        @keyframes pulse {
            0% {}
            70% {
                width: 40px;
                height: 40px;
                opacity: 1;
            }
            100% {
                width: 50px;
                height: 50px;
                opacity: 0;
            }
        }

        body {
            background-color: #333;
        }

        .map {
            position: relative;
            width: 750px;
            height: 610px;
            background: url(./imgs/map1.jpg) no-repeat;
            background-size: 750px auto;
            margin: 10px auto;
        }

        .city {
            position: absolute;
            top: 123px;
            right: 581px;
            color: #fff;
        }

        .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;
            border-radius: 50%;
            box-shadow: 0 0 12px #009dfd;
            animation: pulse 2.4s linear infinite;
        }

        .city div.pulse2 {
            animation-delay: 0.8s;
        }

        .city div.pulse3 {
            animation-delay: 1.6s;
        }


        .city::after {
            top: 10px;
            left: 20px;
            position: absolute;
            width: 50px;
            content: '内蒙古';
            font-size: 12px;
        }
    </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>
posted @ 2025-09-24 09:23  紫川先生  阅读(14)  评论(0)    收藏  举报