具体代码如下所示：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<style type="text/css">
*{
margin: 0;
padding: 0;
box-sizing: border-box;
font-family: "calisto mt";
}
body{
display: flex;
justify-content: center;
align-items: center;
min-height: 100vh;
background: #111;
}
.scan{
position: relative;
display: flex;
flex-direction: column;
align-items: center;
}
.scan .fingerprint{
position: relative;
width: 200px;
height: 280px;
background: url(img/finger0.png) no-repeat;
background-size: 100%;
}
.scan .fingerprint::before{
content: '';
position: absolute;
top:0;
left: 0;
height: 100%;
width: 100%;
background: url(img/finger2.png) no-repeat;
background-size: 100%;
animation: animate 4s ease-in-out infinite;
}
.scan .fingerprint::after{
content: '';
position: absolute;
top:0;
left: 0;
height: 8px;
width: 100%;
margin-top: -30px;
background: #3fefef;
border-radius: 8px;
filter: drop-shadow(0 0 20px #3fefef) drop-shadow(0 0 60px #3fefef);
animation: animate_line 4s ease-in-out infinite;
}
@keyframes animate_line{
0%,100%{
top: 0;
}
50%{
top: 100%;
}
}
@keyframes animate{
0%,100%{
opacity: 0;
}
50%{
opacity: 1;
}
}
.scan h3{
text-transform: unset;
font-size: 2em;
letter-spacing: 2px;
margin-top: 20px;
color: #3FEFEF;
filter: drop-shadow(0 0 20px #3fefef) drop-shadow(0 0 60px #3fefef);
animation: animate_txt 4s ease-in-out infinite;
}
@keyframes animate_txt{
0%,100%{
opacity: 0;
}
50%{
opacity: 1;
}
}
</style>
</head>
<body>
<div class="scan">
<div class="fingerprint"></div>
<h3>Scanning...</h3>
</div>
</body>
</html>
效果图：
