.dragdropzone { position: relative; width: 400px; text-align: center; padding: 50px; border: 5px dotted #cccccc; }
.dragdropzone.dragin { border: 5px dotted #00ff00; }
.dragdropzone .text { margin: 20px; }
.dragdropzone .btnFile { display: inline-block; position: relative; vertical-align: top; }
.dragdropzone .btnFile label { display: inline-block; position: relative; min-width: 50px; height: 22px; padding: 0 6px; border: 1px solid #a1acc1; border-radius: 3px; box-sizing: border-box; font-size: 11px; line-height: 22px; color: #757b89; letter-spacing: -0.1em; vertical-align: top; background: #f6f8fd; }
.dragdropzone .btnFile input { position: absolute; left: -9999px; width: 1px; height: 1px; font-size: 0; line-height: 0; opacity: 0; cursor: pointer; }

/* 20190404 */
[data-tooltip-text]:hover {
    position: relative;
}

[data-tooltip-text]:after {
    -webkit-transition: bottom .3s ease-in-out, opacity .3s ease-in-out;
    -moz-transition: bottom .3s ease-in-out, opacity .3s ease-in-out;
    transition: bottom .3s ease-in-out, opacity .3s ease-in-out;

    background-color: rgba(0, 0, 0, 0.8);

    -webkit-box-shadow: 0px 0px 3px 1px rgba(50, 50, 50, 0.4);
    -moz-box-shadow: 0px 0px 3px 1px rgba(50, 50, 50, 0.4);
    box-shadow: 0px 0px 3px 1px rgba(50, 50, 50, 0.4);

    -webkit-border-radius: 5px;
    -moz-border-radius: 5px;
    border-radius: 5px;

    color: red;
    font-size: 17px;
    margin-bottom: 10px;
    padding: 7px 12px;
    position: absolute;
    width: auto;
    min-width: 50px;
    max-width: 10000px;
    word-wrap: break-word;
    font-weight:bold;

    z-index: 999;

    opacity: 0;
    left: -9999px;

    content: attr(data-tooltip-text);
}

[data-tooltip-text]:hover:after {
    top: 5%;
    left: 80%;
    opacity: 1;
}