#sec_event {
    scroll-margin-top: 60px;
}

.exhi_img {
    padding: 20px 0;
    margin: 0 auto;
    text-align: center;
}
@media only screen and (min-width: 600px) {
    .exhi_img {
        width: 80%;
        max-width: 650px;
    }
}