js实现炫酷光感效果

<div class="main"></div>

* {
 margin: 0;
 padding: 0;
}

html,
body {
 height: 100%;
 overflow: hidden;
}

body {
 background: darkblue;
}

.main {
 width: 8px;
 height: 8px;
 position: absolute;
 left: 50%;
 top: 50%;
 transform: translate(-50%, -50%);
 perspective: 800px; /* 视角 */
}

var main = document.getElementsByClassName("main")[0];

for (var x = 0; x < 30; x++) {
 var i = document.createElement("i");
 main.appendChild(i);
}

.main i {
 width: 8px;
 height: 8px;
 border-radius: 50%;
 background: rgba(255, 255, 255, 0.5);
 box-shadow: 0 0 10px 0 white;
 position: absolute;
}

var is = document.getElementsByTagName("i");
for (var i = 0; i < is.length; i++) {
 is[i].style.transform = `rotate(${i * 12}deg) translateX(80px)`;
}

.main i {
 width: 8px;
 height: 8px;
 border-radius: 50%;
 background: rgba(255, 255, 255, 0.5);
 box-shadow: 0 0 10px 0 white;
 position: absolute;
 animation: run 3s ease-in-out infinite;
}

@keyframes run {
 0% {
 opacity: 0;
 }
 10% {
 opacity: 1;
 }
 100% {
 opacity: 1;
 transform: translate3d(0, 0, 560px);
 }
}

for (var i = 0; i < is.length; i++) {
 is[i].style.transform = `rotate(${i * 12}deg) translateX(80px)`;
 is[i].style.animationDelay = `${i * 0.05}s`;
}

var main = document.getElementsByClassName("main")[0];

for (var x = 0; x < 60; x++) {
 var i = document.createElement("i");
 main.appendChild(i);
}

var is = document.getElementsByTagName("i");
for (var i = 0; i < is.length; i++) {
 is[i].style.transform = `rotate(${i * 12}deg) translateX(80px)`;
 is[i].style.animationDelay = `${i * 0.05}s`;
}