<div class="button_container">
	<p class="description">A simple pure CSS hover effect</p>
	<button class="btn"><span>Hover me!</span></button>
  <!--<p class="link">
    Design by 
    <a href="https://dribbble.com/skytrip" target="_blank">SkyTrip</a>
  </p>-->
</div>

@import url('https://fonts.googleapis.com/css?family=Amatic+SC');

body {
	margin: 0;
	height: 100%;
	background-image: linear-gradient(to top, #d9afd9 0%, #97d9e1 100%);
	background-repeat: no-repeat;
  background-size: cover;
  background-attachment: fixed;
}

.button_container {
	position: absolute;
  left: 0;
  right: 0;
  top: 30%;
}

.description, .link {
  font-family: 'Amatic SC', cursive;
  text-align: center;
}

.description {
	font-size: 35px;
}

.btn {
  border: none;
  display: block;
  text-align: center;
  cursor: pointer;
  text-transform: uppercase;
  outline: none;
  overflow: hidden;
  position: relative;
  color: #fff;
  font-weight: 700;
  font-size: 15px;
  background-color: #222;
  padding: 17px 60px;
  margin: 0 auto;
  box-shadow: 0 5px 15px rgba(0,0,0,0.20);
}

.btn span {
  position: relative; 
  z-index: 1;
}

.btn:after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  height: 490%;
  width: 140%;
  background: #78c7d2;
  -webkit-transition: all .5s ease-in-out;
  transition: all .5s ease-in-out;
  -webkit-transform: translateX(-98%) translateY(-25%) rotate(45deg);
  transform: translateX(-98%) translateY(-25%) rotate(45deg);
}

.btn:hover:after {
  -webkit-transform: translateX(-9%) translateY(-25%) rotate(45deg);
  transform: translateX(-9%) translateY(-25%) rotate(45deg);
}

.link {
  font-size: 20px;
  margin-top: 30px;
}

.link a {
  color: #000;
  font-size: 25px; 
}