Neon ışıklı sayfa tasarımı ( gir ve gör )

<!DOCTYPE html>
<html lang="en" >
<head>
  <meta charset="UTF-8">
  <title>Alkewebtasarim</title>
  <link rel="stylesheet" href="./style.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/prefixfree/1.0.7/prefixfree.min.js"></script>

</head>
<body>
<!-- partial:index.partial.html -->
<div class="logo"><b>Alke<span>web</span>ta<span>sa</span>rim</b></div>


<a href="#" id="btn-twtr" target="_b">Twitther' dan takip edin!</a>
<!-- partial -->
  <script  src="./script.js"></script>

</body>
</html>

@import url(//fonts.googleapis.com/css?family=Vibur);
html,body{
  height:100%
}
body {
  background: #112 url(//images.weserv.nl/?url=i.imgur.com/6QJjYMe.jpg)  center no-repeat;
  background-size:cover;
  margin:0
}
.logo {
  text-align: center;
  width: 65%;
  height: 250px;
  margin: auto;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
   user-select: none;
}

.logo b{
  font: 400 19vh "Vibur";
  color: #fee;
  text-shadow: 0 -40px 100px, 0 0 2px, 0 0 1em #ff4444, 0 0 0.5em #ff4444, 0 0 0.1em #ff4444, 0 10px 3px #000;
}
.logo b span{
  animation: blink linear infinite 2s;
}
.logo b span:nth-of-type(2){
  animation: blink linear infinite 3s;
}
@keyframes blink {
  78% {
    color: inherit;
    text-shadow: inherit;
  }
  79%{
     color: #333;
  }
  80% {
    
    text-shadow: none;
  }
  81% {
    color: inherit;
    text-shadow: inherit;
  }
  82% {
    color: #333;
    text-shadow: none;
  }
  83% {
    color: inherit;
    text-shadow: inherit;
  }
  92% {
    color: #333;
    text-shadow: none;
  }
  92.5% {
    color: inherit;
    text-shadow: inherit;
  }
}


/* follow me @nodws */
#btn-twtr{
  clear:both;
  color:#fff;
  border:2px solid;
  border-radius:3px;
  text-align:center;
  text-decoration:none;
  display:block;
  font-family:sans-serif;
  font-size:14px;
  width:13em;
  padding:5px 10px;
  font-weight:600;
  position:absolute;
  bottom:20px;
  left:0;
  right:0;
  margin:0 auto;
  background:rgba(0,0,0,0.2);
  box-shadow:0 0 0px 3px rgba(0,0,0,0.2);
  opacity:0.4
}#btn-twtr:hover{color:#fff;opacity:1}

// https://dribbble.com/shots/2955075-Neon-Sign-in-CSS