.im-modal {
  position: fixed;
  z-index: 9999;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.4);
  padding: 30px 30px;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-align: center;
      align-items: center;
  visibility: hidden;
  opacity: 0;
  transition: visibility 200ms, opacity 200ms; }

.im-active {
  visibility: visible;
  opacity: 1; }

.im-active > .im-inner-panel {
  animation: scale 200ms; }

.im-inner-panel {
  overflow-y: auto;
  background-color: #fff;
  padding: 20px;
  margin: 0 auto;
  width: 640px;
  max-width: 100%;
  max-height: 100%; }

@keyframes scale {
  0% {
    transform: scale(0.97); }
  100% {
    transform: scale(1); } }