#myBtn {
  display: none;
  position: fixed;
  bottom: 20px;
  right: 30px;
  z-index: 99;
  font-size: 16px;
  border: none;
  outline: none;
  background-color: #1757b8;
  color: white;
  cursor: pointer;
  padding: 10px;
  border-radius: 50%;
}

#myBtn:hover {
  background-color:#ff7841;
}

.important{
  color: red;
}