.md-input-group.has-error .md-input {
  border-color: red;
}

.md-input-group.has-error .md-input-label {
  color: rgba(255,0,0,.7);
}

.md-input-group.has-error .md-message {
  color: red;
  transform: translate3d(0, 0, 0);
  opacity: 1;
}