.course-categories .card a span {
    display: block;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: absolute;
    top: 50%;
    left: 50%;
    text-align: center;
    color: #FFF;
    text-shadow: 1px 1px 1px rgba(0,0,0,0.3);
    -webkit-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    -o-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
}

.course-categories .card a span i {
    display: block;
    margin-bottom: 5px;
    font-size: 20px;
}

.hover-effect {
    -webkit-transition:  transform .25s ease, box-shadow .3s ease;
    -o-transition:  transform .25s ease, box-shadow .3s ease;
    transition:  transform .25s ease, box-shadow .3s ease;
    -webkit-transform-style: preserve-3d;
    -webkit-backface-visibility: hidden;
    box-shadow: none;
    border: 0;
}

.hover-effect:hover {
    -webkit-transform: translateY(-2px);
    -ms-transform: translateY(-2px);
    -o-transform: translateY(-2px);
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.2);
}