.solid__btn.add__property--btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: #ec1c24; /* default */
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.solid__btn.add__property--btn:hover {
  background-color: #fff;   /* hover */
  color: #ec1c24;
}

.solid__btn.add__property--btn:active {
  background-color: #004c52; /* active */
  color: #fff;
}