.btn {
  -webkit-border-radius: 0;
  -moz-border-radius: 0;
  border-radius: 0px;
  font-family: Arial;
  color: #ffffff;
  font-size: 18px;
  background: #9ebe36;
  padding: 10px 10px 10px 10px;
  text-decoration: none;
  transition: all 0.4s ease-in;
}

.btn:hover {
  background: #728a26;
  text-decoration: none;
}