* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  width: 100%;
  height: 1080px;
}
.container {
  background-image: url("/images/HP_Startseite_1920x1080px.png");
  position: absolute;
  height: 1080px;
  width: 100%;
  background-repeat: no-repeat;
}