#content {
    margin-left: 31px;
    margin-right: 31px;
}

.bb-course-status-wrap ,
.bb-button-wrap ,
.bb-course-volume {
    display: none;
}

.khldt-wrapper-2 {
    margin-top: -27px;
}

.khldt-wrapper-3a {
    text-align: inherit;
}

.khldt-wrapper-3b {
    margin-top: 150px; 
}

@media screen and (max-width: 1200px) {
    .khldt-wrapper-3b {
        margin-top: 150px; 
    }

}