.user-dz-image {
    min-height: 200px;
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
    background-image: none;
}

    .user-dz-image div.file-icon {
        width: 48px;
        height: 48px;
        background-size: contain;
        background-position: center;
        background-repeat: no-repeat;
        position: absolute;
        left: 50%;
        top: 50%;
        margin: -24px 0 0 -24px;
        color: #FFF;
        padding-top: 20px;
        text-align: center;
        font-size: 14px;
    }

    .user-dz-image btn {
        position: absolute;
        right: 8px;
        bottom: 8px;
    }

div.dz-default.upload-drop-hover, div.dropzone-spatial.upload-drop-hover {
    background-color: #00b235;
}