.btn-datlich {
    position: fixed;
    bottom: 578px;
    right: 10px;
    padding: 5px;
    border-radius: 5px;
    z-index: 99;
    background: #8c0404;
    color: #fff;
    font-size: 14px;
    text-align: center;
    text-decoration: none !important;
}

.btn-datlich i {
    font-size: 20px;
}

.btn-datlich:hover {
    color: #ffff00 !important;
    transition: 0.2s;
}

@media (max-width: 992px) {
	.btn-datlich {
        bottom: 340px
    }
}
 
/* Modal popup */
.modal {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.6);
  display: none;
  z-index: 99999;
}
.modal-content {
  background: #fff;
  width: 90%;
  max-width: 480px;
  margin: 10% auto;
  padding: 20px;
  border-radius: 10px;
  position: relative;
}
.modal-content .close {
  position: absolute;
  top: 10px;
  right: 15px;
  font-size: 22px;
  cursor: pointer;
}
.modal-overlay {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
}