practice-time-landing-page/style.css

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

.header_logo {
    background-color: #000;
    display: flex;
    justify-content: center;
    padding: 28px 0;
}

.image_logo {
    display: block;
}

.image_banner1 {
    width: 100%;
}

@media screen and (max-width: 414px) {
    .banner_desktop {
        display: none;
    }
}

@media screen and (min-width: 414px) {
    .banner_mobile {
        display: none;
    }
}