main .h1-main-style {
    font-size: 36px;
    font-weight: 700;
    text-transform: uppercase;
}
.h2-main-style {
    font-size: 36px;
    font-weight: 700;
    text-transform: uppercase;
}

@media screen and (max-width:1000px) {
    main .h1-main-style {
        font-size: 24px;
        line-height: 31px;
    }
}