.p-front-body img {
    width: auto;
    height: auto;
    margin-bottom: 10px;
}
.mar_b_10 {
    margin-bottom: 10px;
}
.mar_b_30 {
    margin-bottom: 30px;
}
@media screen and (max-width: 767px) {
    .p-front-body {
        padding: 100px 30px 0;
    }
}