.line{
    margin-top: 040px;
    margin-bottom: 25px;
}
.detail_content{
    margin-top: 30px;
}
.what_topic{
    font-weight: 500;
    font-size: 22pt;
    color: #282828;
    line-height: 1.2;
}
.what_sub_topic {
    font-weight: 500;
    font-size: 19px;
    color: #282828;
    margin-bottom: 2px;
    line-height: 1.4;
}
.w_coverimg{
    width: 100%;
    margin-top: 40px;
}
.detail_gridcontent{
    margin-top: 50px;
    margin-bottom: 50px;
}
.detail_txt{
    color: #282828;
    font-size: 14px;
    margin-bottom: 0px;
    line-height: 1.8;
}
.what_grid_container{
    margin-top: 59px;
}
.what_grid_color {
    background-color: #f5f5f5;
    padding: 8px;
    font-weight: 500;
    color: #333333;
    letter-spacing: 1.2px;
    font-size: 18px;
}
.what_sub_div{
    margin-top: 15px;
    margin-bottom: 30px;
}
.what_grid_img{
    padding-left: 10px;
    margin-top: -3px;
}
@media (max-width: 992px) {
    .line {
        padding-left: 15px;
        padding-right: 15px;
        margin-top: 50px;
    }
    .line_img{
        width: 100%;
    }
    .detail_content {
        margin-top: 17px;
    }
    .detail_gridcontent {
        margin-top: 35px;
        margin-bottom: 35px;
    }
}

@media (max-width: 320px) {
    .what_topic {
        font-size: 19pt;
    }
    .what_sub_topic {
        font-size: 17px;
    }
    .detail_txt {
        font-size: 12px;
    }
}