/* 새로 짠 코드 */

.main {
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: space-around;
    align-items: center;
}

.contents {
    display: flex;
    justify-content: center;
}

.text-center {
    text-align: center;
}

.ser_img img {
    width: 400px;
    margin-bottom: 20px;
}


@media (max-width: 640px) {
    .ser_img img {
        width: 300px !important;
    }
}


.strong {
    font-weight: bold;
    font-size: 2rem;
    color: #333;
    margin-bottom: 10px;
}

@media (max-width: 640px) {
    .strong {
        font-size: 1.3rem;
        margin-bottom: 10px;
    }
}

.txt-basic {
    font-size: 1.2rem;
    color:#999
}

@media (max-width: 500px) {
    .txt-basic {
        font-size: 0.9rem;
    }
}