.cd-top {
  display: inline-block;
  height: 4rem;
  width: 4rem;
  position: fixed;
  bottom: 1.5rem;
  right: 1rem;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.05);
  /* image replacement properties */
  overflow: hidden;
  text-indent: 100%;
  white-space: nowrap;
  background: url(../back-to-top/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;
  -moz-border-radius: 4rem;
  -webkit-border-radius: 4rem;
  border-radius: 4rem;
  z-index: 1000;
}
.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: #3e014e;*/
  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;*/
/*  }*/
/*}*/