.links-sender {
  position: fixed !important;
  bottom: 0;
  width: 100%;
}

.links-sender .send-button {
  color: #75b0ba;
}

.links-sender .deactivate {
  color: lightgray;
  pointer-events: none;
}

.links-sender .error-msg {
  color: #cc0000;
}

.links-sender input[type="text"]:focus {
  border-color: #75b0ba;
}

.links-sender {
  position: fixed !important;
  bottom: 0;
  width: 100%;
}

.links-sender .send-button {
  color: #75b0ba;
}

.links-sender .error-msg {
  color: #cc0000;
}

.links-sender input[type="text"]:focus {
  border-color: #75b0ba;
}

Use disabled attribute instead of deactivate class
Use disabled attribute instead of deactivate class
