body {
  background-image: url("https://am1r3l.neocities.org/ZdrojeObrazku/Elektropopelnice.png");
  background-size: 10%;
  color: #000000;
  font-family: "3270";
  
  .center {
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: 50%;
}
}