.d-flex {
    display: flex;
    gap: 1em;
}
.mb-4 {
    margin-bottom: 1em;
}
.mt-4 {
    margin-top: 1em;
}

.teacher-detail .photo img {
    width: 200px;
    padding: 2px;
    background-color: #fffbf4;
    border: 1px solid #e0d6c5;
    border-radius: 4px;
}
.publications .heading {
    background: #eee7db;
    text-transform: uppercase;
    color: #58433e;
    padding: .2em 1em;
}
@media (max-width: 640px) {
    .display-block-xs {
        display: block!important;
    }
    .align-center-xs {
        text-align: center!important;
    }
}