<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>纯CSS 3D纸鸟飞翔动画</title>
<link type="text/css" rel="stylesheet" href="css/style.css">
</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>
