.professor-minititle {

    font-size: 1.5em;
    height: 2.2em;
    width: 10em;
    position: relative;
    padding: 0.25em 1em;
    border-top: solid 2px black;
    border-bottom: solid 2px black;
    margin: 0 auto;
    text-align: center;
    margin-top: 3vw;
}

.professor-minititle:before,
.professor-minititle:after {
    content: '';
    position: absolute;
    top: -7px;
    width: 2px;
    height: -webkit-calc(100% + 14px);
    height: calc(100% + 14px);
    background-color: black;
}

.professor-minititle:before {
    left: 7px;
}

.professor-minititle:after {
    right: 7px;
}