Swing text effect

<div class='stage'>
  <div class='layer'></div>
  <div class='layer'></div>
  <div class='layer'></div>
  <div class='layer'></div>
  <div class='layer'></div>
  <div class='layer'></div>
  <div class='layer'></div>
  <div class='layer'></div>
  <div class='layer'></div>
  <div class='layer'></div>
  <div class='layer'></div>
  <div class='layer'></div>
  <div class='layer'></div>
  <div class='layer'></div>
  <div class='layer'></div>
  <div class='layer'></div>
  <div class='layer'></div>
  <div class='layer'></div>
  <div class='layer'></div>
  <div class='layer'></div>
</div>

<script src="//cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
//Скрипт js надо подключать здесь
//Автор: Nikolay Talanov. @suez

@charset "UTF-8";
@import url("//fonts.googleapis.com/css?family=Pacifico&text=Pure");
@import url("//fonts.googleapis.com/css?family=Roboto:700&text=css");
@import url("//fonts.googleapis.com/css?family=Kaushan+Script&text=!");
html, body {
  height: 100%;
}

body {
  background: radial-gradient(circle, #0077ea, #1f4f96, #1b2949, #000);
  -webkit-font-smoothing: subpixel-antialiased;
}

.stage {
  height: 300px;
  width: 500px;
  margin: auto;
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
}

.layer {
  width: 100%;
  height: 100%;
  position: absolute;
  transform-style: preserve-3d;
  opacity: 0;
  animation: ಠ_ಠ 5s infinite alternate ease-in-out -7.5s, o_O 0.1s 1;
  animation-fill-mode: forwards;
  transform: rotateY(40deg) rotateX(33deg) translateZ(0);
}

.layer:after {
  font: 150px/0.65 "Pacifico", "Kaushan Script", Futura, "Roboto", "Trebuchet MS", Helvetica, sans-serif;
  content: "Pure\a     css!";
  white-space: pre;
  text-align: center;
  height: 100%;
  width: 100%;
  position: absolute;
  top: 50px;
  color: whitesmoke;
  letter-spacing: -2px;
  text-shadow: 4px 0 10px rgba(0, 0, 0, 0.13);
}

.layer:nth-child(1):after {
  transform: translateZ(0px);
}

.layer:nth-child(2):after {
  transform: translateZ(-2px);
}

.layer:nth-child(3):after {
  transform: translateZ(-4px);
}

.layer:nth-child(4):after {
  transform: translateZ(-6px);
}

.layer:nth-child(5):after {
  transform: translateZ(-8px);
}

.layer:nth-child(6):after {
  transform: translateZ(-10px);
}

.layer:nth-child(7):after {
  transform: translateZ(-12px);
}

.layer:nth-child(8):after {
  transform: translateZ(-14px);
}

.layer:nth-child(9):after {
  transform: translateZ(-16px);
}

.layer:nth-child(10):after {
  transform: translateZ(-18px);
}

.layer:nth-child(11):after {
  transform: translateZ(-20px);
}

.layer:nth-child(12):after {
  transform: translateZ(-22px);
}

.layer:nth-child(13):after {
  transform: translateZ(-24px);
}

.layer:nth-child(14):after {
  transform: translateZ(-26px);
}

.layer:nth-child(15):after {
  transform: translateZ(-28px);
}

.layer:nth-child(16):after {
  transform: translateZ(-30px);
}

.layer:nth-child(17):after {
  transform: translateZ(-32px);
}

.layer:nth-child(18):after {
  transform: translateZ(-34px);
}

.layer:nth-child(19):after {
  transform: translateZ(-36px);
}

.layer:nth-child(20):after {
  transform: translateZ(-38px);
}

.layer:nth-child(n+10):after {
  -webkit-text-stroke: 3px rgba(0, 0, 0, 0.25);
}

.layer:nth-child(n+11):after {
  -webkit-text-stroke: 15px dodgerblue;
  text-shadow: 6px 0 6px #00366b, 5px 5px 5px #002951, 0 6px 6px #00366b;
}

.layer:nth-child(n+12):after {
  -webkit-text-stroke: 15px #0077ea;
}

.layer:last-child:after {
  -webkit-text-stroke: 17px rgba(0, 0, 0, 0.1);
}

.layer:first-child:after {
  color: #fff;
  text-shadow: none;
}

@keyframes ಠ_ಠ {
  100% {
    transform: rotateY(-40deg) rotateX(-43deg);
  }
}
@keyframes o_O {
  100% {
    opacity: 1;
  }
}