body {
 background-image:url(video.mp4);
 background-size: 500px auto;
}
table, th, td    {
  border: 2px;
  border-style: solid;
  border-spacing:1;
  border-color: white
/*  border-color: #20b22a*/ 
}
.temp-spalte {
    background-color: #32cd32;
}
/*  background-color: lightgrey;  */
}