.page_banner {
    background-image: url(../images/banner.jpg);
    width: 100%;
    height: 420px;
    background-size: cover;
}

.detail_about_box {
    padding: 80px 0;
}

.detail_about_content {
    width: 700px;
}

.detail_about_content_box {
    width: 50%;
    height: 100%;
}

.detail_about_img {
    width: 50%;
}

.detail_about_img img {
    width: 100%;
}

.detail_about_content p {
    font-size: 18px;
    margin-top: 25px;
    line-height: 32px;
}

@media (max-width: 1250px) {
    .detail_about_box {
        padding: 20px;
        display: block;
    }

    .detail_about_content {
        width: auto;
    }

    .detail_about_content_box {
        width: 100%;
    }

    .detail_about_img {
        width: 100%;
    }
    .detail_about_content p {
        font-size: 16px;
        margin-top: 20px;
        line-height: 28px;
    }
    .detail_about_img{
        margin-top: 20px;
    }
}