DIEA
				用了SCSS来写,如果不太熟悉的话,可以看CSS。话不多说,直接上代码index.html<div class="loading">    <div></div>    <div></div>    <div></div>    <div></div>    <div></div>    <div></div>    <div></div>    <div></div>    <div></div>    <div></div>    <div></div>    <div></div>    <div></div></div>loading.scss// 线条总数$total: 13;// 每个线条相差的角度$angel: 180/($total - 1);.loading {    background: black;    width: 400px;    height: 400px;    position: relative;    div {        position: absolute;        display: block;        width: 100%;        height: 2px;        top: 50%;        transform-origin: 50% 50%;        &:before {            display: block;            content: "";            height: 100%;            width: 10%;            background: white;        }        @for $i from 1 through $total {            &:nth-child(#{$i}) {                transform: translate3d(0, -50%, 0) rotate(#{$angel*($i - 1)}deg);                opacity: 0.2 + 0.8 * $i / $total;            }        }    }}loading.css.loading {    background: black;    width: 400px;    height: 400px;    position: relative;}.loading div {    position: absolute;    display: block;    width: 100%;    height: 2px;    top: 50%;    transform-origin: 50% 50%;}.loading div:before {    display: block;    content: "";    height: 100%;    width: 10%;    background: white;}.loading div:nth-child(1) {    transform: translate3d(0, -50%, 0) rotate(0deg);    opacity: 0.26154;}.loading div:nth-child(2) {    transform: translate3d(0, -50%, 0) rotate(15deg);    opacity: 0.32308;}.loading div:nth-child(3) {    transform: translate3d(0, -50%, 0) rotate(30deg);    opacity: 0.38462;}.loading div:nth-child(4) {    transform: translate3d(0, -50%, 0) rotate(45deg);    opacity: 0.44615;}.loading div:nth-child(5) {    transform: translate3d(0, -50%, 0) rotate(60deg);    opacity: 0.50769;}.loading div:nth-child(6) {    transform: translate3d(0, -50%, 0) rotate(75deg);    opacity: 0.56923;}.loading div:nth-child(7) {    transform: translate3d(0, -50%, 0) rotate(90deg);    opacity: 0.63077;}.loading div:nth-child(8) {    transform: translate3d(0, -50%, 0) rotate(105deg);    opacity: 0.69231;}.loading div:nth-child(9) {    transform: translate3d(0, -50%, 0) rotate(120deg);    opacity: 0.75385;}.loading div:nth-child(10) {    transform: translate3d(0, -50%, 0) rotate(135deg);    opacity: 0.81538;}.loading div:nth-child(11) {    transform: translate3d(0, -50%, 0) rotate(150deg);    opacity: 0.87692;}.loading div:nth-child(12) {    transform: translate3d(0, -50%, 0) rotate(165deg);    opacity: 0.93846;}.loading div:nth-child(13) {    transform: translate3d(0, -50%, 0) rotate(180deg);    opacity: 1;}