.facebookBlock {
  position: fixed;
  width: 300px;
  top:0px;
  right: 0px;
  z-index: 5000000000000;
  
  height: 100%;
  border-left: 1px solid #ccc;
  background-color: #fff;
}

.fondoBlanco {
  background-color: #fff;
}