.main {
    position: relative;
    min-height: 600px;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    color: #fff;
    /* background-size: cover !important; */
    background-position: center !important;
}

.main .visual {
    min-height: 800px;
    text-align: center;
    background-color: rgba(0, 0, 0, 0.15);
}

.main .name {
    font-weight: 700;
    font-size: 80px;
    padding-top: 200px;
}

.main .period {
    font-weight: 700;
    font-size: 36px;
    margin-top: 12px;
}

.main .main-btn-box {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    flex-wrap: wrap;
    padding: 0 50px;

}

.main .side-btn-list {
    position: absolute;
    top: 0px;
    right: 0px;
    width: 80px;
    background: #0006;
}

.main .side-btn {
    padding: 10px 0;
}

.main .side-btn-text {
    font-size: 13px;
    margin-bottom: 3px;
}

.main .contest-call {
    font-size: 26px;
    margin-top: 25px;
}

.main .contest-call span {
    padding: 0 15px;
}


/* 가로모드 태블릿이나 오래된 데스크탑 모니터 */
@media only screen and (max-width: 1024px) {
    .main {
        min-height: auto;
    }
}

/* 세로 모드의 태블릿이나 큰 화면을 가진 스마트폰의 가로모드 */
@media screen and (min-width:768px) and (max-width: 1023px) {
    .main .side-btn-list {
        display: none;
    }
}

/*  일반적인 스마트폰의 가로모드 */
@media only screen and (max-width: 767px) {
    .main .side-btn-list {
        display: none;
    }

    .main .name {
        font-size: 32px;
    }

    .main .period {
        font-size: 20px;
        margin-top: 10px;
        margin-bottom: 20px;
    }

    .main .contest-call {
        font-size: 16px;
    }
}

@media screen and (max-width:480px) {  
    .main .contest-call {display: grid} 
}