.box {
    display: none;
    flex-direction: column;
    align-items: center;
    position: absolute;
    /* border: 2px solid black; */
    width: 40%;
    height: 150px;
    overflow: hidden;
    /* background: rgba(0, 0, 0, 0.829); */
}

.icon-file {
    position: relative;
    /* border: 5px solid black; */
    width: 50px;
    height: 50px;
}



.base-file {
    position: absolute;
    bottom: 0;
    border: 2px solid black;
    width: 100px;
    height: 20px;   
}   

@keyframes topToBotton {
    from {top: 150px;}
    to {top: 0px;}
}