#YkrBtn {
  display: none;
  position: fixed;
  bottom: 20px;
  right: 12px;
  z-index: 99;
  outline: none;
  background-color: red;
  color: white;
  cursor: pointer;
  padding: 10px;
  border-radius: 50px;
  object-fit: cover;
  align: center;
  width: 40px;
  height: 40px;
}
#YkrBtn:hover {
  background-color: #555;
  color: yellow;
  border: 1px solid #008CBA;
}
#YkrBtn {
  box-shadow: 0 8px 16px 0 rgba(0,0,0,0.2), 0 6px 20px 0 rgba(0,0,0,0.19);
}