@media screen and (max-width: 750px) {
  .error_box {
    background-image: linear-gradient(rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.8)),
      url(../img/background.png);
    min-height: 450px;
    background-size: cover;
    background-repeat: no-repeat;
    color: #ffffff;
    position: relative;
  }
  .error_box .error_title{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
  }
  .error_box .error_title h1{
    font-family: 'Nunito Sans', sans-serif;
    font-size: 70px;
  }
  .error_box .error_title p{
    font-size: 10px;
  }
  .error_box .error_title p a{
    text-decoration: none;
    color: #b70f0a;
  }
}
@media screen and (min-width: 750px) {
  .error_box {
    background-image: linear-gradient(rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.8)),
      url(../img/background.png);
    min-height: 650px;
    background-size: cover;
    background-repeat: no-repeat;
    color: #ffffff;
    position: relative;
  }
  .error_box .error_title{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
  }
  .error_box .error_title h1{
    font-family: 'Nunito Sans', sans-serif;
    font-size: 150px;
  }
  .error_box .error_title p a{
    text-decoration: none;
    color: #b70f0a;
  }
}