.container {
  width: 100%;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
}

.error {
  position: fixed;
  left: 0;
  top: 0;
  color: #fff;
  padding: 0.2em;
  border-radius: 0.1em;
  background: #f33;
  z-index: 9999;
}