body {
    font-family: 'Arial', pretendard;
    text-align: center;
    background-color: #ffffff;
}



.container {
    width: 100%;
}

.bgCon1 {
    width: 100%;
    background: url(./image/main01_bg.png) no-repeat center top;
}

.bgCon1 > .widthAuto {
    width: 100%;
    max-width: 1380px;
    margin: 0 auto;
}
.bgCon1 > .widthAuto > img {
    width: 100%;
}

.bgCon2 {
    width: 100%;
    background: #1d1d1d no-repeat center;
}

.bgCon2 > .widthAuto {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.bgCon2 > .widthAuto > img {
    width: 100%;
}

.bgCon3 {
    width: 100%;
    background: #303030 no-repeat center top;
}

.bgCon3 > .widthAuto {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}
.bgCon3 > .widthAuto > img {
    width: 100%;
}

.bgCon4 {
    width: 100%;
    background: #fff no-repeat center top;
}

.bgCon4 > .widthAuto {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}
.bgCon4 > .widthAuto > img {
    width: 100%;
}

.bgCon5 {
    width: 100%;
    background: #f0f0f0 no-repeat center top;
}

.bgCon5 > .widthAuto {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}
.bgCon5 > .widthAuto > img {
    width: 100%;
}

.bgCon6 {
    width: 100%;
    background: #ffffff no-repeat center top;
}

.bgCon6 > .widthAuto {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    margin-bottom: 15%;
}
.bgCon6 > .widthAuto > img {
    width: 100%;
}

.tabs {
    display: flex;
    width: 100%;
    align-items: center;
    overflow-x: auto;
    justify-content: space-between;
    margin: 0 auto;
    margin-bottom: 50px;
    gap: 10px;
}
.tab {
    width: 20%;
    padding: 8px 0px;
    background: none;
    border: none;
    border-bottom: 2px solid #cbcbcb;
    color: #cbcbcb;
    margin: 0 auto;
    font-weight: 600;
    font-family: pretendard;
}
.tab.active {
    color: #000000;
    width: 20%;
    font-weight: 600;
    border-bottom: 4px solid #000000;
}

.instructor-container {
    position: relative;
    display: none;
    justify-content: center;
    margin: 0 auto;

}

.instructor-container > img {
    width: 100%;
}

.instructor-container.active {
    display: block;
}

@media screen and (max-width: 3000px){
    .tab {
            font-size: 21px
     }
}

@media screen and (max-width: 900px){
    .tab {
            font-size: 14px
     }

}