body {
  background-image: url(logo.jpg);
  background-size: 100% auto;
}

#kasten {
  background-color: #B5B8B2;
  min-width: 30em;
  height: 5em;
  margin: 0;
  position: absolute;
  top: 30%;
  left: 50%;
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  opacity: 0.7;
}
#text {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  position: absolute;
  top: 30%;
  left: 50%;
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
}
#schrift {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 28px;
  font-weight: normal;
  color:#264062;
}