/* heros section */
.aboutSection {
    height: 75vh;
    overflow: hidden;
    background-image: url(../img/campusImg.jpg);
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center center;
    position: relative;
}
/* hero gradient */
.aboutSection .image-overlay::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent, #151515);
    z-index: 1;
    pointer-events: none;
}

/* Media Query for Mobile Devices */
@media (max-width: 480px) {
    /* heros section */
    .aboutSection {
        background-image: url(../img/index/hero-mobile.jpg);
    }
}