Hover

<div class="scene">
  <h1>Simple magic!</h1>
  <div class="magic"></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

@font-face {
  src: url("https://s3-us-west-2.amazonaws.com/s.cdpn.io/142996/Anders.ttf");
  font-family: test;
}
*, *:before, *:after {
  box-sizing: border-box;
  margin: 0;
}

html, body {
  font-size: 62.5%;
  height: 100%;
  overflow: hidden;
}

.scene {
  position: relative;
  height: 100%;
  background: #1d1f20;
  padding: 20rem;
  text-align: center;
}

h1 {
  position: relative;
  font-size: 8rem;
  text-transform: uppercase;
  font-family: test;
  color: #fff;
  z-index: 10;
}

.magic {
  z-index: 5;
  position: absolute;
  top: calc(50% - 10rem);
  left: calc(50% - 10rem);
  width: 20rem;
  height: 20rem;
  background: url("https://s3-us-west-2.amazonaws.com/s.cdpn.io/142996/hover-reveal.jpg") 50% 50% no-repeat fixed;
  background-size: cover;
  border-radius: 50%;
}

.check-out {
  z-index: 100;
  position: absolute;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  font-size: 2rem;
  color: #fff;
  font-family: test;
}
.check-out a {
  color: #ffaaaa;
}

$(document).ready(function() {
  var $magic = $(".magic"),
      magicWHalf = $magic.width() / 2;
  $(document).on("mousemove", function(e) {
    $magic.css({"left": e.pageX - magicWHalf, "top": e.pageY - magicWHalf});
  });
});