<!-- https://jsbin.com/liyigoniku/edit?html,css,output -->
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <link rel="stylesheet" href="style.css">
  <title>Neon Button</title>
</head>
<body>
  <a class="neon">Neon</a>
</body>
</html>