.flat-confirm {
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    position: fixed;
    width: 100%;
    height: 100%;
    color: #34495E;
    background-color: rgba(0, 0, 0, .4);
    z-index: 500;
}

.flat-confirm.is-destroy {
      opacity: 0;
      animation: fadeOut .2s;
}

.flat-confirm.is-enter {
      animation: fadeIn .2s;
}

.flat-confirm__container {
      position: absolute;
      top: 50%;
      left: 50%;
      width: 420px;
      padding: 20px;
      background: #FFF;
      border-radius: 4px;
      box-sizing: border-box;
      -ms-transform: translate(-50%, -50%);
          transform: translate(-50%, -50%);
}

.flat-confirm__title {
      font-size: 16px;
}

.flat-confirm__content {
      margin: 12px 0;
      font-size: 14px;
}

.flat-confirm__footer {
      text-align: right;
}

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

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