.error-page {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 16px;
}
.error-page h1 {
  font-size: 200px;
  line-height: 200px;
}
.error-page h2 {
  margin-top: -20px;
  margin-bottom: 40px;
}
.error-page .btn {
  max-width: 200px;
  width: 200px;
}