.sec-projects {
    margin: 60px 0;
    height: auto;
}

.heading {
    text-align: center;
    font-size: 2.7em;
    letter-spacing: 1px;
    padding: 0 0 20px;
}

.gallery-image {
    padding: 20px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}

.gallery-image img {
    height: 250px;
    width: 350px;
    transform: scale(1.0);
    transition: transform 0.4s ease;
}

.img-box {
    box-sizing: content-box;
    margin: 10px;
    height: 250px;
    width: 350px;
    overflow: hidden;
    display: inline-block;
    color: white;
    position: relative;
    background-color: white;
}

.caption {
    position: absolute;
    bottom: 5px;
    left: 20px;
    opacity: 0.0;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.transparent-box {
    height: 250px;
    width: 350px;
    background-color: rgba(0, 0, 0, 0);
    position: absolute;
    top: 0;
    left: 0;
    transition: background-color 0.3s ease;
}

.img-box:hover img {
    transform: scale(1.1);
}

.img-box:hover .transparent-box {
    background-color: rgba(0, 0, 0, 0.5);
}

.img-box:hover .caption {
    transform: translateY(-20px);
    opacity: 1.0;
}

.img-box:hover {
    cursor: pointer;
}

.caption>p:nth-child(2) {
    font-size: 0.8em;
}

.opacity-low {
    opacity: 0.5;
}