html{
  height: 100%;
}
body {
  height: 100%;
  overflow: hidden;
  padding:0;
  margin:0;
  background: url(https://schmoodle.ch/background.jpg);
}

.btn {
  height:45px;
  width:200px;
  font-size:14pt;
  text-align:center;
}

.out {
  font-size: 35px;
  font-weight: 500;
  width: 600px;
  height: 100px;
  text-align: center;
}

.all {
  position:relative;
  height: 200px;
  display: flex;
  top: 35%;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}

.schnupfspruch{
  position: relative;
}

@media (max-width:1500px) and (min-width:600px) {
  body {
    background: url(https://schmoodle.ch/background2.jpg);
  }

}

@media (max-width:600px) {
  body {
    background: url(https://schmoodle.ch/background3.jpg);
  }
  .out {
    width: 400px;
    font-size: 25px;
  }

}

#particles-js {
  position:absolute;
  top: 0;
  left: 0;
  width:100%;
  height:100%
}