challenge-landing-page/Styles/index.css

*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

.page-header{
    display: flex;
    justify-content: center;
    padding: 29px 0;
    background-color: #000000;
}

.banner-principal{
    width: 100%;
}

.banner-principal-mobile{
    display: none;
}

@media screen and (max-width: 414px){
    .banner-principal-desktop{
        display: none;
    }
    .banner-principal-mobile{
        display: unset;
    }
}