/***  BOTTOM BUTTON PART  ***/
/* Thank to https://codyhouse.co/gem/back-to-top/ */
.btn-top {
  display: inline-block;
  height: 40px;
  width: 40px;
  position: fixed;
  bottom: 20px;
  right: 20px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.05);
  /* image replacement properties */
  /*overflow: hidden;*/
  /*text-indent: 100%;*/
  /*white-space: nowrap;*/
  /*background: rgba(232, 98, 86, 0.8);*/
  /*background: #ff9000;*/
  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;
}
.btn-top.btn-top-is-visible, .no-touch .btn-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;
}
.btn-top.btn-top-is-visible {
  /* the button becomes visible */
  visibility: visible;
  opacity: 1;
}

/***  END BOTTOM BUTTON PART  ***/