<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<title>Document</title>
</head>
<style type="text/css">
.dot {
animation: sploosh 1.5s cubic-bezier(0.165, 0.84, 0.44, 1);
}
.dot2 {
animation: sploosh2 1.5s cubic-bezier(0.165, 0.84, 0.44, 1);
}
.dot3 {
animation: sploosh3 1.5s cubic-bezier(0.165, 0.84, 0.44, 1);
}
.dot,.dot2,.dot3{
height: 100px;
width: 100px;
font-size: 20px;
color: #fff;
line-height: 100px;
text-align: center;
border-radius: 100%;
position: absolute;
z-index: 10;
animation-iteration-count:infinite;
background: transparent;
}
@keyframes sploosh {
0% {
box-shadow: 0 0 0 0px rgba(255, 220, 1, 0.7);
background: rgba(255, 220, 1, 0.7);
}
100% {
box-shadow: 0 0 0 30px rgba(255, 220, 1, 0);
background: rgba(255, 220, 1, 0);
}
}
@keyframes sploosh2 {
0% {
box-shadow: 0 0 0 0px rgba(255, 220, 1, 0.7);
background: rgba(255, 220, 1, 0.7);
}
100% {
box-shadow: 0 0 0 20px rgba(255, 220, 1, 0);
background: rgba(255, 220, 1, 0.3);
}
}
@keyframes sploosh3 {
0% {
box-shadow: 0 0 0 0px rgba(255, 220, 1, 0.7);
background: rgba(255, 220, 1, 0.7);
}
100% {
box-shadow: 0 0 0 10px rgba(255, 220, 1, 0);
background: rgba(255, 220, 1, 1);
}
}
</style>
<body>
<div style="height:100px;width:100px;border-radius:100%;position: relative;margin:200px auto; ">
<div class="dot">
<div class="dot2">
<div class="dot3">每日签到</div>
</div>
</div>
</div>
</body>
</html>
效果图：