.mainSec {
    width: 80%;
    margin: auto;
    text-align: center;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;

}

.mainSec h1 {
    font-size: 50px;
    font-weight: bolder;
    letter-spacing: 1.5px;

}

.ul1 {
    text-align: left;
    font-size: 30px;

    padding: 0 20px;
}

.ul2 {
    font-size: 20px;
    padding: 0 20px;

}

.ul3 {
    font-size: 18px;
    padding: 0 20px;

}

.ul4 {
    font-size: 16px;
    padding: 0 20px;

}

.li1 {
    margin: 40px;
    font-weight: bold;
}

.li2 {
    margin: 30px;
    font-weight: 400;
}

.li3 {
    margin: 20px;
    font-weight: 400;
}

.li4 {
    margin: 10px;
    font-weight: 400;
}

@media (max-width:834px) {
    .mainSec {
        width: 100%;
    }

    .mainSec h1 {
        font-size: 40px;

    }

    .ul1 {
        text-align: left;
        font-size: 24px;
        padding: 0 5px;
    }

    .ul2 {
        font-size: 18px;
        padding: 0 5px;

    }

    .ul3 {
        font-size: 16px;
        padding: 0 5px;

    }

    .ul4 {
        font-size: 14px;
        padding: 0 5px;

    }

    .li1 {
        margin: 20px;

    }

    .li2 {
        margin: 15px;

    }

    .li3 {
        margin: 10px;

    }

    .li4 {
        margin: 5px;
    }

}