<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>css3呼吸灯效果(原创)-jq22.com</title>
<script src="https://libs.baidu.com/jquery/1.11.3/jquery.min.js"></script>
<style>
html,body {
padding:0;
margin:0;
position:relative;
background-color:#000000;
}
.app {
width:100%;
display:flex;
height:100vh;
font-family:sans-serif;
position:relative;
justify-content:center;
align-items:center;
}
.box {
position:relative;
}
.box span {
width:50px;
height:50px;
line-height:50px;
text-align:center;
margin:70px;
display:inline-block;
border-radius:100%;
color:#ffffff;
}
.red {
animation:change 3s ease-in-out infinite alternate;
}
.green {
animation:change2 7s ease-in-out infinite alternate;
}
.blue {
animation:change3 5s ease-in-out infinite alternate;
}
@keyframes change {
0% {
border:5px solid rgba(255,0,0,0);
box-shadow:0 0 0 rgba(255,0,0,0),0 0 0 rgba(255,0,0,0) inset;
}
100% {
border:5px solid rgba(255,0,0,1);
box-shadow:0 0 70px rgba(255,0,0,1),0 0 15px rgba(255,0,0,0.6) inset;
}
}@keyframes change2 {
0% {
border:5px solid rgba(0,255,0,0);
box-shadow:0 0 0 rgba(0,255,0,0),0 0 0 rgba(0,255,0,0) inset;
}
100% {
border:5px solid rgba(0,255,0,1);
box-shadow:0 0 70px rgba(0,255,0,1),0 0 15px rgba(0,255,0,0.6) inset;
}
}@keyframes change3 {
0% {
border:5px solid rgba(0,0,255,0);
box-shadow:0 0 0 rgba(0,0,255,0),0 0 0 rgba(0,0,255,0) inset;
}
100% {
border:5px solid rgba(0,0,255,1);
box-shadow:0 0 70px rgba(0,0,255,1),0 0 15px rgba(0,0,255,0.6) inset;
}
}</style>
</head>
<body>
<div class="app">
<div class="box">
<span class="red"></span>
<span class="green"></span>
<span class="blue"></span>
</div>
</div>
<script>
</script>
</body>
</html>
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