.btn {
  font-size: 20px;
  height: 59px;
  background-color: #039a9f;
  color: #fff;
  padding: 17px;
  transition: background-color .3s linear,color .3s linear;
  border: 1px solid #039a9f
}
.btn:hover:not(:active) {
  background-color: #f0f0f0;
  color: #039a9f
}
.btn_white {
  background-color: #f0f0f0;
  color: #9d9d9d;
  border-color: #9d9d9d
}
.btn_white:hover:not(:active) {
  background-color: #039a9f;
  color: #f0f0f0
}
.btn:disabled {
  opacity: .5;
  pointer-events: none
}
.btn_in {
  background-color: #fff;
  color: #039a9f
}
.btn_in:hover:not(:active) {
  background-color: #039a9f;
  color: #f0f0f0
}
@media (max-width:768px) {
  .btn {
    height: 45px;
    font-size: 16px;
    padding: 6px
  }
}