css文字闪烁效果

<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
    <style>
        body{
            background: #000;
        }
        h1.fb-glitch {
            position: relative;
            color: #abff79;
        }
        h1.fb-glitch:before {
            left: -2px;
            text-shadow: 2px 0 #0b391a;
            animation: glitch-anim-2 3s infinite linear alternate-reverse;
        }
        h1.fb-glitch:before, h1.fb-glitch:after {
            content: attr(data-text);
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            clip: rect(0, 0, 0, 0);
        }
        h1.fb-glitch:after {
            left: 2px;
            text-shadow: -1px 0 #1b5c16;
            animation: glitch-anim-1 2s infinite linear alternate-reverse;
        }
        @keyframes glitch-anim-1 {
            0% {
                clip: rect(82px, 820px, 98px, 0); }
            5.8823529412% {
                clip: rect(17px, 820px, 4px, 0); }
            11.7647058824% {
                clip: rect(24px, 820px, 44px, 0); }
            17.6470588235% {
                clip: rect(24px, 820px, 111px, 0); }
            23.5294117647% {
                clip: rect(29px, 820px, 45px, 0); }
            29.4117647059% {
                clip: rect(114px, 820px, 115px, 0); }
            35.2941176471% {
                clip: rect(103px, 820px, 22px, 0); }
            41.1764705882% {
                clip: rect(49px, 820px, 32px, 0); }
            47.0588235294% {
                clip: rect(2px, 820px, 10px, 0); }
            52.9411764706% {
                clip: rect(80px, 820px, 44px, 0); }
            58.8235294118% {
                clip: rect(70px, 820px, 30px, 0); }
            64.7058823529% {
                clip: rect(27px, 820px, 79px, 0); }
            70.5882352941% {
                clip: rect(82px, 820px, 112px, 0); }
            76.4705882353% {
                clip: rect(27px, 820px, 2px, 0); }
            82.3529411765% {
                clip: rect(47px, 820px, 104px, 0); }
            88.2352941176% {
                clip: rect(53px, 820px, 102px, 0); }
            94.1176470588% {
                clip: rect(2px, 820px, 90px, 0); }
            100% {
                clip: rect(88px, 820px, 56px, 0); } }

        @keyframes glitch-anim-2 {
            0% {
                clip: rect(88px, 820px, 68px, 0); }
            5.8823529412% {
                clip: rect(75px, 820px, 113px, 0); }
            11.7647058824% {
                clip: rect(80px, 820px, 40px, 0); }
            17.6470588235% {
                clip: rect(70px, 820px, 51px, 0); }
            23.5294117647% {
                clip: rect(47px, 820px, 78px, 0); }
            29.4117647059% {
                clip: rect(61px, 820px, 7px, 0); }
            35.2941176471% {
                clip: rect(94px, 820px, 1px, 0); }
            41.1764705882% {
                clip: rect(26px, 820px, 69px, 0); }
            47.0588235294% {
                clip: rect(91px, 820px, 62px, 0); }
            52.9411764706% {
                clip: rect(8px, 820px, 78px, 0); }
            58.8235294118% {
                clip: rect(17px, 820px, 97px, 0); }
            64.7058823529% {
                clip: rect(66px, 820px, 48px, 0); }
            70.5882352941% {
                clip: rect(66px, 820px, 85px, 0); }
            76.4705882353% {
                clip: rect(46px, 820px, 12px, 0); }
            82.3529411765% {
                clip: rect(69px, 820px, 68px, 0); }
            88.2352941176% {
                clip: rect(38px, 820px, 7px, 0); }
            94.1176470588% {
                clip: rect(83px, 820px, 32px, 0); }
            100% {
                clip: rect(110px, 820px, 95px, 0); } }
    </style>
</head>
<body>
<h1 class="fb-glitch" data-text="花花世界">花花世界</h1>
</body>
</html>