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<style>
body {
padding: 200px;
position: relative;
}
.load::before, .load::after {
content: '';
position: absolute;
top: 0;
right: 0;
left: 0;
bottom: 0;
margin: auto;
width: 0;
height: 0;
border-radius: 50%;
background-color: black;
animation: 1.3s loading infinite linear
}
.load::after {
animation-delay: .75s;
}
@keyframes loading {
from {
width: 0;
height: 0;
opacity: 1;
}
to {
width: 60px;
height: 60px;
opacity: 0;
}
}
</style>
</head>
<body>
<div class="load">
</div>
</body>
效果如下：
