.error-2 {
  max-width: 500px;
  padding: 20px;
  color: #fff;
  display: -ms-flexbox;
  display: flex;
  height: 100%;
  -ms-flex-pack: center;
      justify-content: center;
  -ms-flex-align: center;
      align-items: center;
  -ms-flex-direction: column;
      flex-direction: column;
  -ms-flex-wrap: nowrap;
      flex-wrap: nowrap;
}

.error-2 h1 {
  font-size: 128px;
  text-shadow: 1px 1px 1px black;
}

.error-2 h3 {
  text-transform: uppercase;
  text-shadow: 1px 1px 1px rgba(0, 0, 0, 0.75);
  font-size: 40px;
}

.error-2 h1 {
  text-align: center;
  margin-bottom: 20px;
}

.error-2 h3 {
  text-align: center;
  margin-bottom: 40px;
}

.error-2 .btn {
  text-shadow: 1px 1px 1px rgba(0, 0, 0, 0.75);
}