label.form-label {
    font-weight: bold;
}

.caption {
    display: inline-block;
    position: relative;
}

.caption img {
    display: block;
    max-width: 100%;
}

.caption .overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.25);
    color: white;
}