.cd-top {
	  display: inline-block;
	  height: 40px;
	  width: 40px;
	  position: fixed;
	  bottom: 40px;
	  right: 10px;
	  box-shadow: 0 0 10px rgba(0, 0, 0, 0.05);
	  /* image replacement properties */
	  overflow: hidden;
	  text-indent: 100%;
	  white-space: nowrap;
	  background: rgba(72, 167, 168, 0.8) url(../img/cd-top-arrow.svg) no-repeat center 50%;
	  visibility: hidden;
	  opacity: 0;
	  -webkit-transition: opacity .3s 0s, visibility 0s .3s;
	  -moz-transition: opacity .3s 0s, visibility 0s .3s;
	  transition: opacity .3s 0s, visibility 0s .3s;
	}
	.cd-top.cd-is-visible, .cd-top.cd-fade-out, .no-touch .cd-top:hover {
	  -webkit-transition: opacity .3s 0s, visibility 0s 0s;
	  -moz-transition: opacity .3s 0s, visibility 0s 0s;
	  transition: opacity .3s 0s, visibility 0s 0s;
	}
	.cd-top.cd-is-visible {
	  /* the button becomes visible */
	  visibility: visible;
	  opacity: 1;
	}
	.cd-top.cd-fade-out {
	  /* if the user keeps scrolling down, the button is out of focus and becomes less visible */
	  opacity: .5;
	}
	.no-touch .cd-top:hover {
	  background-color: #48a7a8;
	  opacity: 1;
	}
	@media only screen and (min-width: 768px) {
	  .cd-top {
		right: 20px;
		bottom: 20px;
	  }
	}
	@media only screen and (min-width: 1024px) {
	  .cd-top {
		height: 60px;
		width: 60px;
		right: 30px;
		bottom: 30px;
	  }
	}