CSS3的animation功能

旋轉動畫

<img src="https://facebook.github.io/react/img/logo.svg" class="App-logo">  
      

.App-logo {
animation: App-logo-spin infinite 20s linear;
transform: rotate(360deg);
}

@keyframes App-logo-spin {
from { transform: rotate(0deg); }
to { transform: rotate(360deg); }
}      

參考：

2、http://www.runoob.com/cssref/css3-pr-flex.html