label.file-upload{position:relative;overflow:hidden}
label.file-upload input[type=file]{
    position:absolute;
    top:0;
    right:0;
    min-width:100%;
    min-height:100%;
    font-size:100px;
    text-align:right;
    filter:alpha(opacity=0);
    opacity:0;
    outline:0;
    background:#fff;
    cursor:inherit;
    display:block}