body {
  overflow: hidden;
}
.imagedefond {
  position: relative;
}
.imagedefond img {
  width: 100vw;
  height: 100vh;
  z-index: 9;
}
#log {
  position: absolute;
  z-index: 99;
  width: 100vw;
  height: 100vh;
}
#log0 {
  height: 40%;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
#log1 {
  height: 15%;
  border-bottom: solid 1px white;
  border-top: solid 1px white;
}
#log2 {
  height: 45%;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}