CSS endless rotation animation

Question

I want to make a rotation of my loading icon by CSS.

I have an icon and the following code:

<style>
#test {
    width: 32px;
    height: 32px;
    background: url('refresh.png');
}

.rotating {
    -webkit-transform: rotate(360deg);
    -webkit-transition-duration: 1s;
    -webkit-transition-delay: now;
    -webkit-animation-timing-function: linear;
    -webkit-animation-iteration-count: infinite;
}
</style>

<div id='test' class='rotating'></div>

But it doesn't work. How can the icon be rotated using CSS?

Answer 1

@-webkit-keyframes rotating /* Safari and Chrome */ {
  from {
    -webkit-transform: rotate(0deg);
    -o-transform: rotate(0deg);
    transform: rotate(0deg);
  }
  to {
    -webkit-transform: rotate(360deg);
    -o-transform: rotate(360deg);
    transform: rotate(360deg);
  }
}
@keyframes rotating {
  from {
    -ms-transform: rotate(0deg);
    -moz-transform: rotate(0deg);
    -webkit-transform: rotate(0deg);
    -o-transform: rotate(0deg);
    transform: rotate(0deg);
  }
  to {
    -ms-transform: rotate(360deg);
    -moz-transform: rotate(360deg);
    -webkit-transform: rotate(360deg);
    -o-transform: rotate(360deg);
    transform: rotate(360deg);
  }
}
.rotating {
  -webkit-animation: rotating 2s linear infinite;
  -moz-animation: rotating 2s linear infinite;
  -ms-animation: rotating 2s linear infinite;
  -o-animation: rotating 2s linear infinite;
  animation: rotating 2s linear infinite;
}

<div 
  class="rotating"
  style="width: 100px; height: 100px; line-height: 100px; text-align: center;" 
 >Rotate</div>