.about_top{

}
.about_top_image{
    position: relative;
    margin: 15px 0;
}
.about_c_boxes {
    position: absolute;
    bottom: 30px;
    left: 50px;
    width: 1260px;
    border: 1px solid #FFFFFF;
    display: flex;
    justify-content: space-between;
    padding: 10px 20px;
    color: #FFFFFF;
    text-align: center;
}
@media screen and (min-width: 1200px) and (max-width: 1400px){
    .about_c_boxes {
        width: 1060px;
    }
}
.about_c_box_tit {
    font-size: 45px;
    font-weight: bold;
}
.certification_about{
    background-color: #f3f5f9;
}
.certification_about .width_1200{
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}
.certification_box{
    width: 285px;
    margin-bottom: 15px;
}