html, body {
  font-family: 'Courier New', Courier, monospace;
  background-color: #000;
  color: #fff;
}

img {
  max-width: 250px;;
}

.center {
  text-align: center;
}

.center-div-table {
  display: table;
  margin: 0 auto;
}

table {
  border: 1px solid #fff;
  border-collapse: collapse;
  border-spacing: 0;
}