* {
    margin: 0;
    padding: 0;
}

#lightbox_mask {
    height: 100%;
    width: 100%;
    top: 0;
    position: fixed;
    background: #000;
    opacity: 0.5;
    fliter: Alpha(opacity=50);
    z-index: 10000000;
    display: none;
    cursor: pointer;
}

#lightbox_envelop {
    position: fixed;
    left: 50%;
    display: none;
    margin-left: -250px;
    z-index: 100000001;
    border-radius: 3px;
    background: white;
}

.lightbox_picture {
    box-sizing: content-box;
    border: 5px solid #fff;
    border-radius: 3px;
    overflow: hidden;
    position: relative;
    background: #fff;
}

.lightbox_caption {
    position: relative;
    margin: 0 5px;
    margin-top: -60px;
}

.lightbox_caption_area {
    padding: 10px 5px;
    color: #333;

}

.lightbox_pic_desc {
    position: relative;
    color: white
}

.lightbox_of_index {
    color: white;
}

.lightbox_caption_close {
    position: absolute;
    width: 27px;
    height: 27px;
    right: 10px;
    top: 13px;
    cursor: pointer;
    z-index: 8;
}

.lightbox_btn {
    position: absolute;
    top: 0;
    width: 40%;
    height: 100%;
    z-index: 4;
    cursor: pointer;
}

.lightbox_pre_btn {
    left: 0;
}

.lightbox_next_btn {
    right: 0;
}