css+html 实现 光晕 光圈

<style>

html {
height: 100%;
}
body {
height: 100%;
background-color: #000;
margin: 0;
padding: 0;
}
.lensflare {
position: relative;
overflow: hidden;
width: 100%;
min-height: 100%;
overflow: hidden;
}
.source-spread {
position: absolute;
background: radial-gradient(rgba(255, 225, 255, .05) 10%, rgba(255, 225, 255, .05) 30%, rgba(0, 0, 0, 0) 60%);
border-radius: 50%;
width: 2000px;
height: 2000px;
margin-top: -1000px;
margin-left: -1000px;
top: 14%;
left: 14%;
z-index: 0;
}
.source {
position: absolute;
background: radial-gradient(#fff 0%, rgba(243, 206, 205, .4) 35%, rgba(88, 88, 88, .3) 60%, rgba(0, 0, 0, 0) 70%);
border-radius: 50%;
width: 800px;
height: 800px;
margin-top: -400px;
margin-left: -400px;
top: 14%;
left: 14%;
z-index: 2;
}
.source-beam {
position: absolute;
background: radial-gradient(rgba(255, 255, 255, .3) 0%, rgba(0, 0, 0, 0) 70%);
border-radius: 50%;
width: 2200px;
height: 28px;
margin-top: -14px;
margin-left: -1100px;
top: 14%;
left: 14%;
z-index: 1;
}
.c1 {
position: absolute;
background: radial-gradient(ellipse at center, rgba(189, 91, 87, 0) 40%, rgba(189, 91, 87, 0.5) 45%, rgba(189, 91, 87, 0) 50%, rgba(189, 91, 87, 0) 100%);
border-radius: 50%;
width: 400px;
height: 400px;
margin-top: -200px;
margin-left: -200px;
top: 14%;
left: 14%;
z-index: 3;
}
.c2 {
position: absolute;
background: radial-gradient(ellipse at center, rgba(162, 196, 134, 0) 20%, rgba(162, 196, 134, 0.3) 43%, rgba(67, 85, 52, 0) 50%, rgba(67, 85, 52, 0) 100%);
border-radius: 50%;
width: 300px;
height: 300px;
margin-top: -150px;
margin-left: -150px;
top: 3%;
left: 3%;
z-index: 4;
}
.c3 {
position: absolute;
background: radial-gradient(ellipse at center, rgba(31, 99, 255, .1) 1%, rgba(31, 99, 255, .13) 100%);
border-radius: 50%;
width: 160px;
height: 160px;
margin-top: -80px;
margin-left: -80px;
top: 46%;
left: 46%;
z-index: 5;
}
.c4 {
position: absolute;
background: radial-gradient(ellipse at center, rgba(31, 99, 255, .1) 1%, rgba(31, 99, 255, .13) 100%);
border-radius: 50%;
width: 50px;
height: 50px;
margin-top: -25px;
margin-left: -25px;
top: 44%;
left: 44%;
z-index: 6;
}
.c5 {
position: absolute;
background: radial-gradient(ellipse at center, rgba(31, 99, 255, .1) 1%, rgba(31, 99, 255, .13) 100%);
border-radius: 50%;
width: 88px;
height: 88px;
margin-top: -44px;
margin-left: -44px;
top: 47%;
left: 47%;
z-index: 7;
}
.c6 {
position: absolute;
background: radial-gradient(ellipse at center, rgba(255, 129, 57, .15) 1%, rgba(255, 129, 57, .2) 100%);
border-radius: 50%;
width: 88px;
height: 88px;
margin-top: -44px;
margin-left: -44px;
top: 57%;
left: 57%;
z-index: 8;
}
.c7 {
position: absolute;
background: radial-gradient(rgba(255, 225, 255, .9) 10%, rgba(137, 255, 220, .4) 30%, rgba(0, 0, 0, 0) 60%);
border-radius: 50%;
width: 16px;
height: 16px;
margin-top: -8px;
margin-left: -8px;
top: 62%;
left: 62%;
z-index: 9;
}
.c8 {
position: absolute;
background: radial-gradient(ellipse at center, rgba(255, 129, 57, .15) 10%, rgba(187, 129, 57, .20) 50%, rgba(255, 129, 57, .2) 60%, rgba(0, 0, 0, 0) 65%);
border-radius: 50%;
width: 190px;
height: 190px;
margin-top: -95px;
margin-left: -95px;
top: 71%;
left: 71%;
z-index: 10;
}
.c9 {
position: absolute;
background: radial-gradient(ellipse at center, rgba(0, 0, 0, .15) 1%, rgba(255, 129, 57, .2) 100%);
border-radius: 50%;
width: 104px;
height: 104px;
margin-top: -52px;
margin-left: -52px;
top: 70%;
left: 70%;
z-index: 11;
}
.c10 {
position: absolute;
background: radial-gradient(ellipse at center, rgba(0, 0, 0, .15) 1%, rgba(255, 129, 57, .2) 100%);
border-radius: 50%;
width: 60px;
height: 60px;
margin-top: -30px;
margin-left: -30px;
top: 72%;
left: 72%;
z-index: 12;
}
.c11 {
position: absolute;
background: radial-gradient(rgba(255, 225, 255, .9) 10%, rgba(137, 255, 220, .4) 30%, rgba(0, 0, 0, 0) 60%);
border-radius: 50%;
width: 22px;
height: 22px;
margin-top: -11px;
margin-left: -11px;
top: 75%;
left: 75%;
z-index: 13;
}
.c12 {
position: absolute;
background: radial-gradient(ellipse at center, rgba(73, 168, 199, .15) 10%, rgba(100, 145, 42, .20) 30%, rgba(100, 145, 42, .2) 60%, rgba(0, 0, 0, 0) 65%);
border-radius: 50%;
width: 80px;
height: 80px;
margin-top: -40px;
margin-left: -40px;
top: 81%;
left: 81%;
z-index: 14;
}
.c13 {
position: absolute;
background: radial-gradient(ellipse at center, rgba(0, 0, 0, .5) 4%, rgba(100, 145, 42, .2) 36%, rgba(163, 240, 63, .2) 38%, rgba(100, 145, 42, .1) 40%, rgba(189, 91, 87, 0) 43%);
border-radius: 50%;
width: 240px;
height: 240px;
margin-top: -120px;
margin-left: -120px;
top: 88%;
left: 88%;
z-index: 15;
}
.c14 {
position: absolute;
background: radial-gradient(ellipse at center, rgba(189, 91, 87, 0) 39%, rgba(94, 29, 191, 0.2) 41%, rgba(29, 71, 191, 0.2) 42%, rgba(191, 113, 29, 0.2) 43%, rgba(189, 91, 87, 0) 45%, rgba(189, 91, 87, 0) 100%);
border-radius: 50%;
width: 600px;
height: 600px;
margin-top: -300px;
margin-left: -300px;
top: 99%;
left: 99%;
z-index: 16;
}

</style>
<div class="lensflare">
<div class="source-spread"></div>
<div class="source"></div>
<div class="source-beam"></div>
<div class="c1"></div>
<div class="c2"></div>
<div class="c3"></div>
<div class="c4"></div>
<div class="c5"></div>
<div class="c6"></div>
<div class="c7"></div>
<div class="c8"></div>
<div class="c9"></div>
<div class="c10"></div>
<div class="c11"></div>
<div class="c12"></div>
<div class="c13"></div>
<div class="c14"></div>
</div>