.back-to-top {
  color: #333333;
  display: flex;
  position: fixed;
  bottom: 20px;
  right: 20px;
  text-align: center;
  opacity: 0;
  -webkit-transition: opacity 2s;
  transition: opacity 2s;
  z-index: 100000000 !important;
  background: #445246;
  color: #ffffff !important;
  /*padding: 15px;*/
  align-content: center;
  justify-content: center;
  flex-direction: column;
  width: 60px;
  height: 60px;
}

.back-to-top-icon {
  font-size: 23px;
  color: #ffffff;
  /*background: #445246;*/
  /*padding: 15px;*/
  text-decoration: none;
}