#wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-flow: column nowrap;
    height: 100%;
    background-image: url(../img/index-img.png);
    background-repeat: no-repeat;
    background-position: bottom;
    background-size: contain;
}
#wrap .img_wrap {
    width: 15rem;
    margin-bottom: 10rem;
}
#wrap .img_wrap img {
    width: 100%;
}
#wrap a {
    font-size: 2.8rem;
    color: #fff;
    background: linear-gradient(to right, #96618f, #515f98);
    padding: 1.5rem 6rem;
    border-radius: 1.5rem;
}