<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>加载中动画效果</title>
<style type="text/css">
dot {
display: inline-block;
height: 1em;
line-height: 1;
text-align: left;
vertical-align: -.25em;
overflow: hidden;
}
dot::before {
display: inline-block;
content: '...\A..\A.';
white-space: pre;
animation: dot 3s infinite step-start both;
}
@keyframes dot {
33% {
transform: translateY(-2em);
}
66% {
transform: translateY(-1em);
}
}
</style>
</head>
<body>
<p>正在加载中<dot>...</dot></p>
</body>
</html>摘自CSS content换行实现字符点点点loading效果，其它参考等宽字体实现
