.img-container{
  position:relative;
  
}
.img-container .overlay{
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:100%;
  background:rgb(0,0,0);
  opacity:0;
  transition:opacity 500ms ease-in-out;
}

.img-container:hover .overlay{

  opacity: 0.8;
}

.overlay span{
  position:absolute;
  font-weight: bold;
  color:#fff;
}

.text-trailer {

  font-size: 16px;
  
}

.text-anuncios {

    font-size: 18px;
  

}