body .content a.sfc_totop {
  position: fixed;
  bottom: -200px;
  right: 10%;
  background-color: #fff;
  padding: 12px 12px 10px;
  box-shadow: 0 0 2px #888;
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  text-decoration: none;
  font-weight: 600;
  color: #262626;
  z-index: 1;
  transition: none;
}
body .content a.sfc_totop.show {
  bottom: 50%;
}
@media only screen and (max-width: 575px) {
  body .content a.sfc_totop.show {
    bottom: 10px;
  }
}