.bs-dropzone input[type="file"] {
    position: absolute;
    left: 0;
    top: 0;
    display: block;
    width: 100%;
    height: 100%;
    opacity: 0;
}
.bs-dropzone input[type="file"]:hover {
    cursor: pointer;
}
.bs-dropzone > .bs-dropzone-area {
    position: relative;
    overflow: hidden;
}
.bs-dropzone > .bs-dropzone-area > .bs-dropzone-box {
    margin: 0 !important;
}
.bs-dropzone > .bs-dropzone-preview {
    margin-top: 15px;
    display: none;
}