<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<style>
.spinner {
margin-top: 100px;
margin-right: auto;
margin-bottom: 100px;
margin-left: auto;
width: 50px;
height: 50px;
position: relative;
}
.container1>div,
.container2>div,
.container3>div {
width: 12px;
height: 12px;
background-color: #aaa9a9;
border-radius: 100%;
position: absolute;
-webkit-animation: bouncedelay 1.2s infinite ease-in-out;
animation: bouncedelay 1.2s infinite ease-in-out;
-webkit-animation-fill-mode: both;
animation-fill-mode: both;
}
.spinner .spinner-container {
position: absolute;
width: 100%;
height: 100%;
}
.container2 {
-webkit-transform: rotateZ(45deg);
transform: rotateZ(45deg);
}
.container3 {
-webkit-transform: rotateZ(90deg);
transform: rotateZ(90deg);
}
.circle1 {
top: 0;
left: 0;
}
.circle2 {
top: 0;
right: 0;
}
.circle3 {
right: 0;
bottom: 0;
}
.circle4 {
left: 0;
bottom: 0;
}
.container2 .circle1 {
-webkit-animation-delay: -1.1s;
animation-delay: -1.1s;
}
.container3 .circle1 {
-webkit-animation-delay: -1.0s;
animation-delay: -1.0s;
}
.container1 .circle2 {
-webkit-animation-delay: -0.9s;
animation-delay: -0.9s;
}
.container2 .circle2 {
-webkit-animation-delay: -0.8s;
animation-delay: -0.8s;
}
.container3 .circle2 {
-webkit-animation-delay: -0.7s;
animation-delay: -0.7s;
}
.container1 .circle3 {
-webkit-animation-delay: -0.6s;
animation-delay: -0.6s;
}
.container2 .circle3 {
-webkit-animation-delay: -0.5s;
animation-delay: -0.5s;
}
.container3 .circle3 {
-webkit-animation-delay: -0.4s;
animation-delay: -0.4s;
}
.container1 .circle4 {
-webkit-animation-delay: -0.3s;
animation-delay: -0.3s;
}
.container2 .circle4 {
-webkit-animation-delay: -0.2s;
animation-delay: -0.2s;
}
.container3 .circle4 {
-webkit-animation-delay: -0.1s;
animation-delay: -0.1s;
}
@-webkit-keyframes bouncedelay {
0%,
80%,
100% {
-webkit-transform: scale(0.0)
}
40% {
-webkit-transform: scale(1.0)
}
}
@keyframes bouncedelay {
0%,
80%,
100% {
transform: scale(0.0);
-webkit-transform: scale(0.0);
}
40% {
transform: scale(1.0);
-webkit-transform: scale(1.0);
}
}
</style>
<div class="um-win" id="index">
<div class="um-header">
<h3>导航栏</h3>
</div>
<div class="um-content">
<div class="spinner">
<div class="spinner-container container1">
<div class="circle1"></div>
<div class="circle2"></div>
<div class="circle3"></div>
<div class="circle4"></div>
</div>
<div class="spinner-container container2">
<div class="circle1"></div>
<div class="circle2"></div>
<div class="circle3"></div>
<div class="circle4"></div>
</div>
<div class="spinner-container container3">
<div class="circle1"></div>
<div class="circle2"></div>
<div class="circle3"></div>
<div class="circle4"></div>
</div>
</div>
</div>
</body>
</html>