@media (min-width: 1230px) and (max-width: 1299px) {
    .topic-border {
        margin-left: 3%;
        margin-right: 3%;
    }
}
@media (min-width: 1200px) and (max-width: 1229px) {
    .topic-border {
        margin-left: 2%;
        margin-right: 2%;
    }
}
@media (min-width: 992px) and (max-width: 1199px) {
    .topic-border {
        margin-left: 2%;
        margin-right: 2%;
    }
    .bd-bottom2 {
        height: 335px;
    }
    .topic-txt {
        font-size: 35px;
    }
    .content-head-txt {
        font-size: 20px;
    }
    .content-detail, .content-detail2, .content-detail3 {
        font-size: 16px;
    }
}
@media (min-width: 760px) and (max-width: 991px) {
    .topic-border {
        margin-left: 2%;
        margin-right: 2%;
    }
    .bd-bottom2 {
        height: 40px;
        margin-left: 30px;
        margin-right: 30px;
    }
    .topic-txt {
        font-size: 35px;
    }
    .content-head-txt {
        font-size: 20px;
        margin-left: 15px;
        margin-right: 15px;
    }
    .content-detail, .content-detail2, .content-detail3 {
        font-size: 16px;
        margin-left: 15px;
        margin-right: 15px;
        height: auto;
    }
    .img-center{
        text-align: -webkit-center;
    }
    .txt-right {
        padding: 15px;
    }
}
@media (min-width: 590px) and (max-width: 759px) {
    .topic-border {
        margin-left: 2%;
        margin-right: 2%;
    }
    .bd-bottom2 {
        height: 40px;
        margin-left: 15px;
        margin-right: 15px;
    }
    .topic-txt {
        font-size: 30px;
        margin-top: -25px;
    }
    .content-head-txt {
        font-size: 20px;
    }
    .content-detail, .content-detail2, .content-detail3 {
        font-size: 16px;
        height: auto;
    }
    .img-center{
        text-align: -webkit-center;
    }
}
@media (min-width: 503px) and (max-width: 589px) {
    .topic-border {
        margin-left: 2%;
        margin-right: 2%;
    }
    .bd-bottom2 {
        height: 40px;
        margin-left: 15px;
        margin-right: 15px;
    }
    .topic-txt {
        font-size: 25px;
        margin-top: -25px;
    }
    .content-head-txt {
        font-size: 20px;
    }
    .content-detail, .content-detail2, .content-detail3 {
        font-size: 16px;
        height: auto;
    }
    .img-center{
        text-align: -webkit-center;
    }
}
@media (min-width: 290px) and (max-width: 502px) {
    .topic-border {
        margin-left: 2%;
        margin-right: 2%;
    }
    .bd-bottom2 {
        height: 40px;
        margin-left: 15px;
        margin-right: 15px;
    }
    .topic-txt {
        font-size: 25px;
        margin-top: -25px;
        padding-left: 15px;
        padding-right: 15px;
    }
    .content-head-txt {
        font-size: 20px;
    }
    .content-detail, .content-detail2, .content-detail3 {
        font-size: 16px;
        height: auto;
    }
    .img-center{
        text-align: -webkit-center;
    }
}