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<!DOCTYPE html> <html> <head> <style> #main { width: 400px; height: 150px; border: 1px solid #000000; display: flex; } #main div { width: 70px; height: 70px; } #myGreenDIV { animation: mymove 5s infinite; } @keyframes mymove { 50% {order: 6;} } </style> </head> <body> <h1>动画顺序</h1> <p>将绿色 DIV 元素的顺序从 1 更改为 6，然后再更改为 1：<p> <div id="main"> <div style="background-color:lightgreen;order:1;" id="myGreenDIV"></div> <div style="background-color:coral;order:2;"></div> <div style="background-color:lightblue;order:3;"></div> <div style="background-color:pink;order:4;"></div> </div> <p><strong>注意：</strong>CSS 动画在 Internet Explorer 9 及更早版本中不起作用。</p> </body> </html>