html, body{
  height:100%;
  margin:0;
}

body{
  background: transparent !important;
}

/* Achtergrondlaag */
html::before{
  content:"";
  position:fixed;
  inset:0;

  background-image: url("/images/onweer_2560.jpg");
  background-size: cover;          /* vult scherm */
  background-repeat: no-repeat;    /* voorkomt herhalen */
  background-position: 58% 40%;    /* positie */
  background-attachment: fixed;

  filter: brightness(1.10) contrast(1.08);

  z-index:-1;
}

#container{
  position:relative;
  z-index:1;
  background: transparent !important;
}