.file_drop{
    display:inline-block;
    position:absolute;
    top:0px;
    left:0px;
    height:100%;
    width:100%;
    background-color:rgba(0,0,0,.4);
}


.file_drop_static{
    display:inline-block;
    position:absolute;
    top:0px;
    left:0px;
    height:100%;
    width:100%;
}