@media only screen and (max-width: 1150px) {
    #principal{
        align-items: end !important;
        height: 70vh !important;
    }
    #box-principal{
        width: 90vw !important;
        max-width: 1500px;
        background-color: rgba(0, 0, 0, 0.664);
        margin-bottom: 5vw;
        padding: 15px;
        box-sizing: border-box;
    }
    h1{
        font-size: 36px !important;
    }
    h2{
        font-size: 28px !important;
    }
    h3{
        font-size: 16px;
    }
}