.holstrength {
    background-image: url('../img/holistrength.png');
    background-color: black;
    background-size: cover; /* or contain, depending on your needs */
    background-position: center; /* adjust as needed */
}

@media (max-width: 768px) { /* Adjust the max-width as needed for your mobile breakpoint */
    .holstrength {
        background-image: url('../img/tainomerch.png');
        background-color: black;

    }
    .hide-on-mobile {
        display: none;
    }
}