IPython/html/static/tree/less/altuploadform.less

/* We need an invisible input field on top of the sentense*/
/* "Drag file onto the list ..." */

.alternate_upload
{
    background-color:none;
    display: inline;
}

.alternate_upload.form
{
    padding: 0;
    margin:0;
}

.alternate_upload input.fileinput
{
    display: inline;
    opacity: 0;
    z-index: 2;
    width: 12ex;
    margin-right: -12ex;
}

.alternate_upload .input-overlay {
    display: inline-block;
    font-weight: bold;
}