img {
    width: 150px;
    height: 150px;
    border: 1px solid gray;
    margin: 2px;
}






/* ======= Responsive/Responsividade ======= */
@media (max-width: 991px){

    html {
        font-size: 55%;
    }

}

@media (max-width: 768px){


}

@media (max-width: 450px){

    html {
        font-size: 50%;
    }

}