* {
    margin: 0;
    padding: 0;
}

html, body {
    height: 100%;
}

#seite {
    position: relative;
    min-height: 100%;
    width: 550px;
    margin: 0 auto;
}

#inhalt {
   
    padding-bottom: 2em;
}

#fussbereich {
    position:absolute;
    bottom: 0;
    width: 100%;
}

video {  
  width: 100vw;
  height: 100vh;
  object-fit: cover;
  position: fixed;
  top: 0;
  left: 0;
  z-index: -1;
}