.banner{
    width: 100%;
    background: #0B2739 url(https://aprodmovistarcomsa.z13.web.core.windows.net/persons/pasos-esshop/banner/assets/banner_mobile.png) no-repeat 100%;
    background-size: contain;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    padding: 26px;
}
.banner br{
    display: block;
}

.banner div{
    width: 100%;
    max-width: 1125px;
    margin: 0 auto;
}

.banner div h1{
    color: #019df4;
    font-weight: 300;
    font-size: clamp(23px, 3vw, 36px);
    line-height: 1;
    width: clamp(215px, 65vw, 637px);
}

.posTitle{
    width: 100%;
    max-width: 530px;
    display: flex;
    justify-content: center;
    align-items: center; 
    margin: 20px auto;
    padding: 10px;
}

.posTitle h3{
    text-align: center;
    color: #019df4;
    font-weight: 300;
    line-height: 1;
    font-size: clamp(20px, 3vw, 32px);
}

@media screen and (min-width: 768px) {
    .banner{
        background: #0B2739 url(https://aprodmovistarcomsa.z13.web.core.windows.net/persons/pasos-esshop/banner/assets/BannerDesk.png) no-repeat 100%;
        background-size: cover;
    }

    .banner br{
        display: none;
    }

    .posTitle{
        margin: 40px auto;
    }
}