analytics/assets/css/modal.css

.modal {
  display: none;
}

.modal.is-open {
  display: block;
}

.modal[aria-hidden="false"] .modal__overlay {
  animation: mmfadeIn .2s ease-in;
}

.modal[aria-hidden="true"] .modal__overlay {
  animation: mmfadeOut .2s ease-in;
}

.modal-enter {
  opacity: 0;
}

.modal-enter-active {
  opacity: 1;
  transition: opacity 100ms ease-in;
}

.modal__overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.6);
  z-index: 99;
  overflow-x: hidden;
  overflow-y: auto;
}

.modal__container {
  background-color: #fff;
  padding: 1rem 2rem;
  max-width: 860px;
  border-radius: 4px;
  margin: 50px auto;
  box-sizing: border-box;
  min-height: 509px;
  transition: height 200ms ease-in;
}

.modal__close {
  position: fixed;
  color: #b8c2cc;
  font-size: 48px;
  font-weight: bold;
  top: 12px;
  right: 24px;
}

.modal__close:before { content: "\2715"; }

.modal__content {
  margin-bottom: 2rem;
}

@keyframes mmfadeIn {
    from { opacity: 0; }
      to { opacity: 1; }
}

@keyframes mmfadeOut {
    from { opacity: 1; }
      to { opacity: 0; }
}