#prev {
    border: none;
    font-size: 20px;
    background-color: rgba(0, 0, 0, .1);
    color: white;
    cursor: pointer;
    
}

#prev:hover {
  color: grey;
}

#next {
    border: none;
    font-size: 20px;
    background-color: rgba(0, 0, 0, .1);
    color: white;
    cursor: pointer;
    
}

#next:hover {
  color: grey;
}