Neon button With lining top


button

Neon Button.

<!DOCTYPE html>
<html>
<head>
<title>Neon</title>
<link rel="stylesheet" type="text/css" href="style.css">
<style type="text/css">
*
{
margin: 0;
padding: 0;
font-family: sans-serif;
box-sizing: border-box;
}
body
{
display: flex;
justify-content: center;
align-items: center;
min-height: 100vh;
flex-direction: column;
background: #050801;
}
a
{
position: relative;
display: inline-block;
padding: 25px 30px;
margin: 40px 0;
color: #03e9f4;
font-size: 24px;
text-decoration: none;
text-transform: uppercase;
/*overflow: hidden;*/
transition: 0.5s;
letter-spacing: 4px;
}
a:hover
{
background: #03e9f4;
color: #050801;
box-shadow: 0 0 5px #03e9f4,
0 0 25px #03e9f4,
0 0 50px #03e9f4,
0 0 200px #03e9f4;
}
a span 
{
position: absolute;
display: block;
}
a span:nth-child(1)
{
top: 0;
left: -100%;
width: 100%;
height: 2px;
background: linear-gradient(90deg,transparent,#03e9f4);
animation:animate1 1s linear infinite;
}
@keyframes animate1
{
0%
{
left: -100%;
}
50%,100%
{
left: 100%;
}
}
</style>
</head>
<body>
<a href="#">
<span></span>
<span></span>
<span></span>
<span></span>
Rahul
</a>
<a href="#">
<span></span>
<span></span>
<span></span>
<span></span>
Rahul
</a>
<a href="#">
<span></span>
<span></span>
<span></span>
<span></span>
Rahul
</a>

</body>
</html>