html {
  margin: 0;
  padding: 0;
  font-family: Calibri, Arial, Helvetica, sans-serif;
}
body {
  margin: 0;
}

#background-image {
  height: 100vh;
  width: 100vw;
  background: url("../img/bg.png") no-repeat center center fixed;
  -moz-background-size: cover;
  -webkit-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
  -webkit-filter: blur(1px);
  -moz-filter: blur(1px);
  -o-filter: blur(1px);
  -ms-filter: blur(1px);
  filter: blur(1px);
}

#content {
  height: 100vh;
  width: 100vw;
  position: fixed;
  top: 5vh;
  left: 0;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex-direction: column;
}

#beginGameScreen {
  height: 80vh;
  width: 60vw;
  padding: 2vh 10vw;
  background-color: var(--primärfarbe);
  color: white;
  display: flex;
  justify-content: flex-start;
  align-items: center;
  flex-direction: column;
  border-radius: 5px;
}
@media only screen and (max-width: 767px) {
  #headerIMG img {
    width: 40vw;
    border-radius: 25px;
  }
  #startButton {
    width: 90vw;
    height: 4vh;
    padding: 2vh 1vw;
    z-index: 1001;
    display: flex;
    justify-content: center;
    align-items: center;
    stroke: white;
    position: absolute;
    left: 5vw;
    bottom: 7vh;
    background-color: var(--korrekt-grün);
    border-radius: 5px;
    transition: 0.2s;
    font-size: 2vh;
  }
  #startButton:hover {
    cursor: pointer;
  }

  #qrcode {
    width: 200px;
    border: 5px solid white;
    background-color: white;
    display: none;
  }
}