.inputfile {
    width: 0.1px;
    height: 0.1px;
    opacity: 0;
    overflow: hidden;
    position: absolute;
    z-index: -1;
}

    .inputfile + label {
        cursor: pointer; /* "hand" cursor */
    }

    .inputfile:focus + label {
        outline: 1px dotted #000;
        outline: -webkit-focus-ring-color auto 5px;
    }