body {
  font-family: Arial, sans-serif;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 100vh;
  overflow: hidden;
  margin: 0;
  padding: 0;
}

iframe{
  z-index: 30;
}

#background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1; /* Ensure the background is behind other content */
}

#content {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1; /* Ensure the content is after the background*/
}

#model {
  align-items: center;
  z-index: 0; /* Ensure the model is after the content*/
}