.subheader-trio {
    background-color: white;
    background-image: url('../images/hero.jpg');
    background-size: cover;
    background-position: center center;
    color: black;
    position: relative;
    z-index: 1;
}

.subheader-trio::before {
    content: '';
    background-color: white;
    width: 100%;
    height: 100%;
    position: absolute;
    opacity: 0.75;
    z-index: -1;
}

.subheader-trio .col {
    padding-top: 6vw;
    padding-bottom: 6vw;
}

.subheader-trio img {
    display: block;
    margin-left: auto;
    margin-right: auto;
    max-width: 100%;
}