console 命令行工具 X clear
console
<!DOCTYPE html>
<meta charset="utf-8">
<html>
<head>
    <title>微信语音样式</title>
    <style type="text/css">
        *{
            margin: 0;
            padding: 0;
        }
        .box {
            width: 120px;
            height: 120px;
            box-sizing: border-box;
            position: relative;
            margin: 50px auto;
        }
        .wifi-symbol {
            width: 50px;
            height: 50px;
            box-sizing: border-box;
            overflow: hidden;
            transform: rotate(135deg);

        }
        .wifi-circle {
            border: 5px solid #999999;
            border-radius: 50%;
            position: absolute;
        }

        .first {
            width: 5px;
            height: 5px;
            background: #cccccc;
            top: 45px;
            left: 45px;
        }

        .second {
            width: 25px;
            height: 25px;
            top: 35px;
            left: 35px;
            animation: fadeInOut 1s infinite 0.2s;.
        }

        .third {
            width: 40px;
            height: 40px;
            top: 25px;
            left: 25px;
            animation: fadeInOut 1s infinite 0.4s;
        }

        @keyframes fadeInOut {
            0% {
                opacity: 0; /*初始状态 透明度为0*/
            }
            100% {
                opacity: 1; /*结尾状态 透明度为1*/
            }
        }
    </style>
</head>
<body>
    <div class="box">
        <div class="wifi-symbol">
            <div class="wifi-circle first"></div>
            <div class="wifi-circle second"></div>
            <div class="wifi-circle third"></div>
        </div>
    </div>
</body>
</html>