html, body {
  margin: 0;
  padding: 0px;
}

.x-link {
  position: absolute;
  bottom: -358px;
  left: -48px;
  padding: 12px 12px;
  background: #dddddd;
  color: #000;
  text-decoration: none;
  border-radius: 8px;
  font-size: 16px;
  line-height: 1;
  z-index: 25;
  user-select: none;
}
.x-link:hover { background: #888888; }