.background-image-quangcao {
    background: url(http://res.baobacgiang.com.vn/Quangcao/AgriBank/AgriBank1/PC-08.jpg) no-repeat scroll 15% 0 transparent;
    background-attachment: fixed;
    /* background-size: cover; */
    height: 700px;
    margin: 0 auto;
}

.background-image-quangcao-09 {
    background: url(http://res.baobacgiang.com.vn/Quangcao/AgriBank/AgriBank1/PC-09.jpg) no-repeat scroll 15% 0 transparent;
    background-attachment: fixed;
    height: 700px;
    margin: 0 auto;
}
.background-image-quangcao-10 {
    background: url(http://res.baobacgiang.com.vn/Quangcao/AgriBank/AgriBank2/agribank-ii-pc-02.jpg) no-repeat scroll 15% 0 transparent;
    background-attachment: fixed;
    height: 700px;
    margin: 0 auto;
}