.form-wrap,
.success-box {
    border: 5px solid #EEEEEE;
    padding: 80px 15px;
}
.form-wrap:before,
.form-wrap:after,
.success-box:before,
.success-box:after {
    content: "";
    display: block;
    width: 100%;
    height: 8px;
    background: url('../../images/common/shadow.png') no-repeat center top;
    position: absolute;
    bottom: 100%;
    left: 0;
    margin: 0 0 6px 0;
}
.form-wrap:after,
.success-box:after {
    bottom: auto;
    top: 100%;
    background-position: 0 100%;
    margin: 6px 0 0 0;
}
@media screen and (max-width: 767px) {
    .form-wrap,
    .success-box {
        padding: 30px 15px;
    }
}