CSS3动画rotateSpinner无法正常工作

Question

img {
text-align: center;
width: 20px;
margin: auto;
display: block;
-webkit-animation: rotateSpinner 1.2s linear infinite;
}

demo http://jsfiddle.net/cfe2ym54/

这是什么问题？

Answer 1

您忘了添加keyframes

img {
  text-align: center;
  width: 20px;
  margin: auto;
  display: block;
  -webkit-animation: rotateSpinner 1.2s linear infinite;
  animation: rotateSpinner 1.2s linear infinite;
}
@-webkit-keyframes rotateSpinner {
  to {
    -webkit-transform: rotate(360deg);
  }
}
@keyframes rotateSpinner {
  to {
    transform: rotate(360deg);
  }
}

<div class="loading">
  <img src="http://assets.57square.com/img/loading.png">
</div>