body {
  background-image: url(Radanvarsitaustakuva.jpg);
  background-repeat: no-repeat;
  background-attachment: fixed;
  background-size: 100% 100%;
}

.loota {
  background-color: white;
  margin: 25px;
  padding: 10px;
}

.ylvalikko {
  background-color: black;
  opacity: .9;
}