.background-image {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
  display: block;
  background-image: url('Hintergrund.png');
  width: 1200px;
  height:950px;
  filter: brightness(3.0)
  -webkit-filter: blur(5px);
  -moz-filter: blur(5px);
  -o-filter: blur(5px);
  -ms-filter: blur(5px);
  filter: blur(5px);
}

.content {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 9999;
  width: 1160px;
  margin-left: 20px;
  margin-right: 20px;
#  text-shadow: 2px 2px #ffffff;
#  text-shadow: -2px -2px #ffffff;
#  text-shadow: 2px 2px #000000;
#  text-shadow: -2px -2px #000000;
  font-size: 18px;
#  color: green;
#  color: lime;
#  color: white;
#  background-color: white;
}