纯CSS赛博朋克风格炫光loading效果

这是一款纯CSS赛博朋克风格炫光loading效果。该纯CSS赛博朋克风格炫光loading效果利用css帧动画和box-shadow来制作炫酷的发光动画效果，制作出炫酷的赛博朋克风格。

使用方法

HTML代码

<div class="loading">
    <span style="--i:1;"></span>
    <span style="--i:2;"></span>
    <span style="--i:3;"></span>
    <span style="--i:4;"></span>
    <span style="--i:5;"></span>
    <span style="--i:6;"></span>
    <span style="--i:7;"></span>
    <span style="--i:8;"></span>
    <span style="--i:9;"></span>
    <span style="--i:10;"></span>
    <span style="--i:11;"></span>
    <span style="--i:12;"></span>
    <span style="--i:13;"></span>
    <span style="--i:14;"></span>
    <span style="--i:15;"></span>
    <span style="--i:16;"></span>
    <span style="--i:17;"></span>
    <span style="--i:18;"></span>
    <span style="--i:19;"></span>
    <span style="--i:20;"></span>
</div>
		

CSS代码

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: #222;
}

.loading {
    position: relative;
    display: flex;
    gap: 15px;
}

.loading span {
    position: relative;
    width: 5px;
    height: 20px;

}

.loading span::before {
    content: '';
    position: absolute;
    inset: 0;
    animation: animate 8s linear infinite;
    animation-delay: calc(var(--i) * 0.1s);
}

@keyframes animate {
    0% {
        background: #0f0;
        box-shadow: 0 0 5px #0f0,
            0 0 15px #0f0,
            0 0 30px #0f0,
            0 0 50px #0f0;
        rotate: 0deg;
    }

    20% {
        background: #0f0;
        box-shadow: 0 0 5px #0f0,
            0 0 15px #0f0,
            0 0 30px #0f0,
            0 0 50px #0f0;
        rotate: 0deg;
    }

    40% {
        background: #0f0;
        box-shadow: 0 0 5px #0f0,
            0 0 15px #0f0,
            0 0 30px #0f0,
            0 0 50px #0f0;
        rotate: 90deg;
        transform-origin: bottom;
        filter: hue-rotate(0deg);
    }

    80% {
        background: #0f0;
        box-shadow: 0 0 5px #0f0,
            0 0 15px #0f0,
            0 0 30px #0f0,
            0 0 50px #0f0;
        rotate: 90deg;
        transform-origin: bottom;
        filter: hue-rotate(360deg);

    }

    90% {
        background: #000;
        box-shadow: none;
        rotate: 0deg;
    }

    90.1%,
    100% {
        box-shadow: #000;
        box-shadow: none;
    }
}
		

codepen网址：https://codepen.io/StarKnightt/pen/BaMEeEE