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

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

}

.logo-m3 {
    width: 12%;
    height: 42%;
    min-height: 43px;
    min-width: 226px;
}

.banner-principal {
    max-width: 100%;
    min-height: 19%;
}

.banner-big {
    display: block;
    width: 100%;
    height: auto;
}

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