.page-500 {
  text-align: center;
}

.page-500 .number {  
  display: inline-block;
  letter-spacing: -10px;
  line-height: 128px;
  font-size: 128px;
  font-weight: 300;
  color: #ec8c8c;
  text-align: right;
}

.page-500 .details {
  margin-left: 40px;
  display: inline-block;
  text-align: left;
}