body {
  background-color: black;
  background-image: url(imbar.png);
  background-repeat:no-repeat;
  background-position: center center;
  background-size: 35% auto;
}
h1 {
  color: red;
   text-align: center;
}
.center {
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: 50%;
}
img{
max-width:100%;
max-height:100%;
}