@media screen and (max-width: 767px) {
    .banner {
        height: auto;
        padding-top: 50px;
        padding-bottom: 50px;
    }

    .banner li {
        width: 40%;
        margin: 0 5%;
        margin-top: 20px;
    }

    .banner ul {
        height: auto;
        margin-top: 30px;
    }

    .container {
        width: 100%;
    }

    .mob-img {
        display: block;
        width: 80%;
        margin: 0 auto;
    }

}