body, html {
    height: 100%
  } 

  .bgimg {
    background-image: url('http://getwallpapers.com/wallpaper/full/8/a/5/388861.jpg');
    height: 100%;
    background-position: center;
    background-size: cover;
    position: relative;
    color: white;
    font-family: "Courier New", Courier, monospace;
    font-size: 25px;
  }

  .middle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
  }