CSS动画 block 边框半径

Question

动画进行时，border-radius 不起作用，动画结束后，border-radius 开始起作用，有什么解决办法吗？

http://codepen.io/anon/pen/jyvKpq

HTML:

<link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.6.3/css/font-awesome.css" rel="stylesheet">

<div><i class='fa fa-spinner spin360'></i> Text...</div>

<span class="u-p">
  <img src="https://68.media.tumblr.com/30ecad5922df68e02bec6e9dc88f95da/tumblr_oe204wOZrX1votm1fo1_500.jpg">
</span>

CSS:

.u-p {
    display: block;
    position: relative;
    overflow: hidden;
    border-radius: 100%;
    width:65px;
    height:65px;

}
.u-p img {
    position: absolute;
    top: 0;
    bottom: 0;
    left:0;
    margin: auto;
    width: 65px;
    height: auto;
    min-height: 100%;
    min-width: 65px;
}
.spin360 {
  animation-name: spin360;
  animation-duration: 1.5s;
}
@keyframes spin360 {
    from {transform: rotate(0deg);}
    to {transform: rotate(360deg);}
}

Answer 1

您应该将位置设置为相对或绝对，并添加一个z-index到您的< strong>spin360 元素。但真的...别问我为什么，因为您的代码在 Firefox 中运行良好。

.u-p {
    display: block;
    position: relative;
    overflow: hidden;
    width:65px;
    height:65px;
    border-radius: 100%;
}
.u-p img {
    position: absolute;
    top: 0;
    bottom: 0;
    left:0;
    margin: auto;
    width: 65px;
    height: auto;
    min-height: 100%;
    min-width: 65px;
}
.spin360 {
  position:relative;
  z-index:1;
  animation-name: spin360;
  animation-duration: 1.5s;
}
@keyframes spin360 {
    from {transform: rotate(0deg);}
    to {transform: rotate(360deg);}
}

<link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.6.3/css/font-awesome.css" rel="stylesheet">

<div>
    <i class='fa fa-spinner spin360'></i>
    Text...
</div>
<span class="u-p">
  <img src="https://68.media.tumblr.com/30ecad5922df68e02bec6e9dc88f95da/tumblr_oe204wOZrX1votm1fo1_500.jpg" />
</span>