.heading::before {
    background-image: url("../../assets/images/shotcrete-works/cover.jpg");
    background-repeat: no-repeat;
}

.section-first .f-img {
    border-radius: 50px 0 0 0;
    width: 280px;
    height: 200px;
    top: 90px;
    left: -20px;
}

.section-first .s-img {
    border-radius: 0 50px 0 0;
    width: 230px;
    top: -120px;
    left: 280px;
}

.section-first .t-img {
    border-radius: 0 0 50px 0;
    width: 350px;
    height: 200px;
    top: 210px;
    left: 280px;
}

.section-left-img .left {
    background-image: url("../../assets/images/shotcrete-works/section-left-img.jpg");
}

.section-right-img .right {
    background-image: url("../../assets/images/shotcrete-works/section-right-img.jpg");
}

.parallax.bg {
    background-image: url("../../assets/images/shotcrete-works/parallax.jpg");
}

.section-last .f-img {
    border-radius: 20px;
    width: 350px;
    top: 50px;
    left: -20px;
}

.section-last .s-img {
    border-radius: 20px;
    width: 210px;
    height: 300px;
    top: -120px;
    left: 350px;
}

.section-last .t-img {
    border-radius: 20px;
    width: 330px;
    top: 200px;
    left: 350px;
}


/* *************mobile queries*************** */

@media (max-width: 768px) {
    main {
        padding-top: 108px;
    }

    .heading {
        margin-top: 0;
        padding: 2rem 1rem;
    }

    .heading h1 {
        font-size: 2.7rem;
    }
}