元素突然突然突然发出闪光会产生闪光效果。
<html> <head> <style> .animated { background-image: url(/css/images/logo.png); background-repeat: no-repeat; background-position: left top; padding-top:95px; margin-bottom:60px; -webkit-animation-duration: 1s; animation-duration: 1s; -webkit-animation-fill-mode: both; animation-fill-mode: both; } @keyframes flash { 0%, 50%, 100% { opacity: 1; } 25%, 75% { opacity: 0; } } .flash { animation-name: flash; } </style> </head> <body> <div id = "animated-example" class = "animated flash"></div> <button onclick = "myFunction()">Reload page</button> <script> function myFunction() { location.reload(); } </script> </body> </html>