:host { 
  position: fixed;
  bottom: 0;
  background-color: rgba(200,200,200, 0.4);
  font-size: 30px;
  width: 100%;
  text-align: center;
  color: white;
  transform: translateY(200px);
  transition: 1s;
}
:host(.visible) {
  transform: translateY(0px);
}
::content a{
  color: #FF8;
}