CSS3实现旋转光环效果的实现步骤

<div class="bg0 pa">
<div></div>
</div>
<div class="hx-box pa">
<ul>
<li class="hx-k1 pa0">
<span></span>
</li>
<li class="hx-k2 pa0">
<span></span>
</li>
<li class="hx-k3 pa0">
<span></span>
</li>
</ul>
</div>
2. css完整样式
html {
width: 100%;
height: 100%;
}
body {
width: 100%;
height: 100%;
overflow: hidden;
background-image: -webkit-linear-gradient(90deg, #395ecb 0%, #3657be 35%, #242161 75%, #1a0531 100%);
background-image: -moz-linear-gradient(90deg, #395ecb 0%, #3657be 35%, #242161 75%, #1a0531 100%);
background-image: -ms-linear-gradient(90deg, #395ecb 0%, #3657be 35%, #242161 75%, #1a0531 100%);
background-image: linear-gradient(0deg, #395ecb 0%, #3657be 35%, #242161 75%, #1a0531 100%);
perspective: 1000px;
}
.bg0 {
width: 500px;
height: 500px;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
background: url(../images/bg0.png) no-repeat center center;
background-size: 150%;
}
.bg1 {
width: 100%;
height: 100%;
background: url(../images/bg1.png) no-repeat center center;
}
.hx-box {
top: 50%;
left: 50%;
width: 500px;
height: 500px;
transform-style: preserve-3d;
transform: translate(-50%, -50%) rotateY(75deg);
}
.hx-box ul {
width: 500px;
height: 500px;
transform-style: preserve-3d;
animation:hxz 20s linear infinite;
}
@keyframes hxz{
0% {
transform: rotateX(0deg);
}
100% {
transform: rotateX(-360deg);
}
}
.hx-box ul li {
width: 500px;
height: 500px;
border: 4px solid #5ec0ff;
border-radius: 1000px;
}
.hx-box ul li span {
display: block;
width: 100%;
height: 100%;
background: url(../images/hx.png) no-repeat center center;
background-size: 100% 100%;
animation: hx 4s linear infinite;
}
@keyframes hx {
to {
transform: rotate(360deg);
}
}
.hx-k2 {
transform: rotateX(60deg) rotateZ(60deg)
}
.hx-k3 {
transform: rotateX(-60deg) rotateZ(-60deg)
}