.d-none {
  display:none;
}

#page-top {
  position: fixed;
  right: 15px;
  bottom: 20px;
  height: 50px;
  text-decoration: none;
  font-weight: bold;
  -webkit-transform: rotate(90deg);
          transform: rotate(90deg);
  font-size: 90%;
  line-height: 1.5rem;
  color: #ffffff;
  padding: 0 0 0 35px;
  border-top: solid 2px;
}

#page-top::before {
  content: "";
  display: block;
  position: absolute;
  top: -2px;
  left: 1px;
  width: 15px;
  border-top: solid 2px;
  -webkit-transform: rotate(35deg);
          transform: rotate(35deg);
  -webkit-transform-origin: left top;
          transform-origin: left top;
}

#page-top a {
  font-size: 1em;
}