css手写loading

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使用css3:

@keyframe 关键帧实现复杂的动态效果

animation 设置动画时长

transform 对元素进行旋转、缩放、移动或倾斜

HTML:

<div class="EditLoading" style="display: none;">  
  <div class="loadingSweel"></div>
</div>

CSS:

.EditLoading {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, 0);
    z-index: 999;
    display: none;
}
.loadingSweel {
    border: 5px solid #f3f3f3;
    border-top: 5px solid #555;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    display: inline-block;
    animation: spin 1s linear infinite;
}