.maps  {
  margin-top: 50px;
    display: block;
    width: 100%;
    min-height: 400px;
    margin-left: auto;
    margin-right: auto;
    max-height: 400px;
    /*filter: invert(1);*/
    transition: all 0.7s ease;
  }
  
.maps   :hover{
    
  /*  filter: invert(0.9);*/
  }