.modal-body {
  min-width: 300px;
}

input:invalid {
  border-color: red;
}


/* CSS animations for fading in and out */

.custom-animation {
  opacity: 0;
  transform: rotate3d(1, .5, .5, 180deg) scale(0.1);
  transition: all ease-in .4s;
}

.custom-animation-visible {
  opacity: 1;
  transform: none;
}