.intro-img {
    display: block;
    margin: 0 auto;
    margin-top: 40px;
    width: 100%;
    max-width: 853px;
}
.sns-block {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    padding-top: 106px;
    padding-bottom: 140px;
}
.instructors-title {
    display: none;
    padding-top: 37px;
    padding-bottom: 13px;
    padding-left: 30px;
    width: calc(100% - (30px * 2));
}
h1 {
    margin: unset;
    font-size: 24px;

}
h2 {
    margin: unset;
    font-size: 15px;
}
@media screen and (max-width: 853px) {
    .main-img {
        display: none;
    }
    .instructors-title {
        display: block;
    }
}