content换行符与打点loading效果实例页面

代码如下:

CSS

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dot {
display: inline-block;
height: 1em;
line-height: 1;
text-align: left;
vertical-align: -.25em;
overflow: hidden;
}
dot::before {
display: block;
content: '...\A..\A.';
white-space: pre-wrap;
animation: dot 3s infinite step-start both;
}
@keyframes dot {
33% { transform: translateY(-2em); }
66% { transform: translateY(-1em); }
}

HTML

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<div class="wrap">正在加载中<dot>...</dot></div>