.cd-top {
  z-index:999;
  display:inline-block;
  text-align:center;
  padding-top:13px;
  height:50px;
  width:50px;
  position:fixed;
  bottom:20px;
  right:10px;
  overflow: hidden;
  /*text-indent: 100%;*/
  white-space: nowrap;
  border-radius:100%;
  background:#fef050;
  visibility: hidden;
  opacity: 0;
  -webkit-transition: opacity .3s 0s, visibility 0s .3s, background-color .3s 0s;
  transition: opacity .3s 0s, visibility 0s .3s, background-color .3s 0s;
}
.cd-top img{width:15px;}
.cd-top.cd-top--show,
.cd-top.cd-top--fade-out,
.cd-top:hover {
  -webkit-transition: opacity .3s 0s, visibility 0s 0s, background-color .3s 0s;
  transition: opacity .3s 0s, visibility 0s 0s, background-color .3s 0s;
}
.cd-top.cd-top--show {visibility: visible;opacity:1;}
.cd-top:hover {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:50px;
    width: 50px;
    right: 30px;
    bottom: 30px;
  }
}