@media only screen and (min-width:1200px){
    h1 {
        font-size: 44px;
    }

    h2 {
        font-size: 38px;
    }

    h3 {
        font-size: 34px;
    }

    h4 {
        font-size: 24px;
    }
}
@media only screen and (min-width:992px) and (max-width: 1200px) {
    h1 {
        font-size: 44px;
    }

    h2 {
        font-size: 38px;
    }

    h3 {
        font-size: 34px;
    }

    h4 {
        font-size: 24px;
    }
}
@media only screen and (min-width:768px) and (max-width: 992px) {
    h1 {
        font-size: 36px;
    }

    h2 {
        font-size: 32px;
    }

    h3 {
        font-size: 28px;
    }

    h4 {
        font-size: 24px;
    }
     
    .banner-three .slide-item {
        height: 80vh;
    }
}

@media only screen and (min-width:576) and (max-width: 768px) {
    h1 {
        font-size: 32px;
    }

    h2 {
        font-size: 28px;
    }

    h3 {
        font-size: 24px;
    }

    h4 {
        font-size: 20px;
    }
     
    .banner-three .slide-item {
        height: 80vh;
    }
}

@media only screen and (max-width: 576px) {
    h1 {
        font-size: 32px;
    }
    h2 {
        font-size: 28px;
    }
    h3 {
        font-size: 24px;
    }
    h4 {
        font-size: 20px;
    }
    h5 {
        font-size: 16px;
    }
    .banner-three .slide-item {
        height: 80vh;
    }
}