.btn {
    width: 1.1rem;
    height: 0.4rem;
    position: absolute;
    top: 0.27rem;
    right: 0.46rem;
}

.btnPic {
    width: 1.1rem;
    height: 0.4rem;
    display: block;
}

.banner {
    width: 100%;
    height: 7.65rem;
    display: block;
}