DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>飞翔的小鸟title>
<style>
body {
background: #eef;
height: 100vh;
overflow: hidden;
display: flex;
justify-content: center;
align-items: center;
}
#sky {
margin-top: -60px;
perspective: 400px;
filter: drop-shadow(0px 150px 10px rgba(0, 0, 0, 0.2));
}
@-moz-document url-prefix() {
#sky {
filter: none;
}
}
#sky div {
transform-style: preserve-3d;
}
#sky .bird {
-webkit-animation: fly 10000ms linear infinite;
animation: fly 10000ms linear infinite;
}
#sky .bird .wind {
position: absolute;
left: 50%;
width: 4px;
height: 200px;
margin-left: -2px;
border-radius: 999px;
overflow: hidden;
}
#sky .bird .wind:nth-child(1) {
transform: translate3d(189px, -97px, 82px) rotateY(90deg);
}
#sky .bird .wind:nth-child(1)::before {
content: "";
position: absolute;
width: 4px;
height: 300px;
background: rgba(100, 200, 207, 0.3);
border-radius: 999px;
transform: translateY(-300px);
-webkit-animation: wind 2331ms 1268ms linear infinite;
animation: wind 2331ms 1268ms linear infinite;
}
#sky .bird .wind:nth-child(2) {
transform: translate3d(132px, 5px, 70px) rotateY(90deg);
}
#sky .bird .wind:nth-child(2)::before {
content: "";
position: absolute;
width: 4px;
height: 300px;
background: rgba(100, 200, 254, 0.3);
border-radius: 999px;
transform: translateY(-300px);
-webkit-animation: wind 2438ms 1537ms linear infinite;
animation: wind 2438ms 1537ms linear infinite;
}
#sky .bird .wind:nth-child(3) {
transform: translate3d(65px, -132px, -5px) rotateY(90deg);
}
#sky .bird .wind:nth-child(3)::before {
content: "";
position: absolute;
width: 4px;
height: 300px;
background: rgba(100, 200, 17, 0.3);
border-radius: 999px;
transform: translateY(-300px);
-webkit-animation: wind 2613ms 2531ms linear infinite;
animation: wind 2613ms 2531ms linear infinite;
}
#sky .bird .wind:nth-child(4) {
transform: translate3d(-179px, 70px, -25px) rotateY(90deg);
}
#sky .bird .wind:nth-child(4)::before {
content: "";
position: absolute;
width: 4px;
height: 300px;
background: rgba(100, 200, 124, 0.3);
border-radius: 999px;
transform: translateY(-300px);
-webkit-animation: wind 1421ms 1690ms linear infinite;
animation: wind 1421ms 1690ms linear infinite;
}
#sky .bird .wind:nth-child(5) {
transform: translate3d(142px, 66px, -87px) rotateY(90deg);
}
#sky .bird .wind:nth-child(5)::before {
content: "";
position: absolute;
width: 4px;
height: 300px;
background: rgba(100, 200, 127, 0.3);
border-radius: 999px;
transform: translateY(-300px);
-webkit-animation: wind 1639ms 4788ms linear infinite;
animation: wind 1639ms 4788ms linear infinite;
}
#sky .bird .wind:nth-child(6) {
transform: translate3d(56px, -66px, -72px) rotateY(90deg);
}
#sky .bird .wind:nth-child(6)::before {
content: "";
position: absolute;
width: 4px;
height: 300px;
background: rgba(100, 200, 147, 0.3);
border-radius: 999px;
transform: translateY(-300px);
-webkit-animation: wind 1856ms 1426ms linear infinite;
animation: wind 1856ms 1426ms linear infinite;
}
#sky .bird .wind:nth-child(7) {
transform: translate3d(183px, 92px, 74px) rotateY(90deg);
}
#sky .bird .wind:nth-child(7)::before {
content: "";
position: absolute;
width: 4px;
height: 300px;
background: rgba(100, 200, 31, 0.3);
border-radius: 999px;
transform: translateY(-300px);
-webkit-animation: wind 1585ms 3969ms linear infinite;
animation: wind 1585ms 3969ms linear infinite;
}
#sky .bird .wind:nth-child(8) {
transform: translate3d(-13px, -33px, 28px) rotateY(90deg);
}
#sky .bird .wind:nth-child(8)::before {
content: "";
position: absolute;
width: 4px;
height: 300px;
background: rgba(100, 200, 60, 0.3);
border-radius: 999px;
transform: translateY(-300px);
-webkit-animation: wind 1693ms 3611ms linear infinite;
animation: wind 1693ms 3611ms linear infinite;
}
#sky .bird .wind:nth-child(9) {
transform: translate3d(-68px, -73px, 88px) rotateY(90deg);
}
#sky .bird .wind:nth-child(9)::before {
content: "";
position: absolute;
width: 4px;
height: 300px;
background: rgba(100, 200, 34, 0.3);
border-radius: 999px;
transform: translateY(-300px);
-webkit-animation: wind 2249ms 3544ms linear infinite;
animation: wind 2249ms 3544ms linear infinite;
}
#sky .bird .wind:nth-child(10) {
transform: translate3d(174px, -74px, 8px) rotateY(90deg);
}
#sky .bird .wind:nth-child(10)::before {
content: "";
position: absolute;
width: 4px;
height: 300px;
background: rgba(100, 200, 158, 0.3);
border-radius: 999px;
transform: translateY(-300px);
-webkit-animation: wind 1104ms 4095ms linear infinite;
animation: wind 1104ms 4095ms linear infinite;
}
#sky .bird .wind:nth-child(11) {
transform: translate3d(-174px, 122px, 20px) rotateY(90deg);
}
#sky .bird .wind:nth-child(11)::before {
content: "";
position: absolute;
width: 4px;
height: 300px;
background: rgba(100, 200, 116, 0.3);
border-radius: 999px;
transform: translateY(-300px);
-webkit-animation: wind 1100ms 2546ms linear infinite;
animation: wind 1100ms 2546ms linear infinite;
}
#sky .bird_body {
position: relative;
width: 30px;
height: 40px;
background: #70addd;
}
#sky .bird_head {
position: absolute;
top: -30px;
border-right: 15px solid transparent;
border-bottom: 30px solid #6b83fa;
border-left: 15px solid transparent;
transform-origin: 50% 100%;
transform: rotateX(-20deg);
}
#sky .bird_wing_left {
position: absolute;
left: -30px;
height: 30px;
border-right: 30px solid #a399d1;
border-bottom: 10px solid transparent;
transform-origin: 100% 0;
-webkit-animation: wingLeft 1000ms cubic-bezier(0.36, 0.1, 0.16, 1)
infinite alternate;
animation: wingLeft 1000ms cubic-bezier(0.36, 0.1, 0.16, 1) infinite
alternate;
}
#sky .bird_wing_left_top {
position: absolute;
left: -30px;
border-right: 30px solid #929ccf;
border-bottom: 30px solid transparent;
transform-origin: 100% 0;
-webkit-animation: wingLeft 1000ms
cubic-bezier(0.545, 0.08, 0.52, 0.975) infinite alternate;
animation: wingLeft 1000ms cubic-bezier(0.545, 0.08, 0.52, 0.975)
infinite alternate;
}
#sky .bird_wing_right {
position: absolute;
left: 30px;
height: 30px;
border-left: 30px solid #8567f0;
border-bottom: 10px solid transparent;
transform-origin: 0 0;
-webkit-animation: wingRight 1000ms cubic-bezier(0.36, 0.1, 0.16, 1)
infinite alternate;
animation: wingRight 1000ms cubic-bezier(0.36, 0.1, 0.16, 1) infinite
alternate;
}
#sky .bird_wing_right_top {
position: absolute;
border-left: 30px solid #c0a9e0;
border-bottom: 30px solid transparent;
transform-origin: 0 0;
-webkit-animation: wingRight 1000ms
cubic-bezier(0.545, 0.08, 0.52, 0.975) infinite alternate;
animation: wingRight 1000ms cubic-bezier(0.545, 0.08, 0.52, 0.975)
infinite alternate;
}
#sky .bird_tail_left {
position: absolute;
top: 40px;
border-right: 30px solid transparent;
border-top: 40px solid #74a3ff;
transform-origin: 50% 0;
transform: rotateX(-20deg);
}
#sky .bird_tail_right {
position: absolute;
top: 40px;
border-left: 30px solid transparent;
border-top: 40px solid #a3c8ce;
transform-origin: 50% 0;
transform: rotateX(-20deg);
}
@-webkit-keyframes fly {
0% {
transform: rotateX(-120deg) rotateZ(0deg) rotateX(10deg);
}
100% {
transform: rotateX(-120deg) rotateZ(360deg) rotateX(10deg);
}
}
@keyframes fly {
0% {
transform: rotateX(-120deg) rotateZ(0deg) rotateX(10deg);
}
100% {
transform: rotateX(-120deg) rotateZ(360deg) rotateX(10deg);
}
}
@-webkit-keyframes wingLeft {
0% {
transform: rotateY(-40deg);
}
100% {
transform: rotateY(40deg);
}
}
@keyframes wingLeft {
0% {
transform: rotateY(-40deg);
}
100% {
transform: rotateY(40deg);
}
}
@-webkit-keyframes wingRight {
0% {
transform: rotateY(40deg);
}
100% {
transform: rotateY(-40deg);
}
}
@keyframes wingRight {
0% {
transform: rotateY(40deg);
}
100% {
transform: rotateY(-40deg);
}
}
@-webkit-keyframes wind {
0% {
transform: translateY(-300px);
}
100% {
transform: translateY(200px);
}
}
@keyframes wind {
0% {
transform: translateY(-300px);
}
100% {
transform: translateY(200px);
}
}
style>
head>
<body>
<div id="sky">
<div class="bird">
<div class="wind">div>
<div class="wind">div>
<div class="wind">div>
<div class="wind">div>
<div class="wind">div>
<div class="wind">div>
<div class="wind">div>
<div class="wind">div>
<div class="wind">div>
<div class="wind">div>
<div class="bird_body">
<div class="bird_head">div>
<div class="bird_wing_left">
<div class="bird_wing_left_top">div>
div>
<div class="bird_wing_right">
<div class="bird_wing_right_top">div>
div>
<div class="bird_tail_left">div>
<div class="bird_tail_right">div>
div>
div>
div>
body>
html>
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