input[group]:not([group="first"]):not([group="last"]),
textarea[group]:not([group="first"]):not([group="last"]),
select[group]:not([group="first"]):not([group="last"]) {
    border-radius: 0;
    margin-bottom: -1px;
}

input[group="first"],
textarea[group="first"],
select[group="first"] {
    margin-bottom: -1px;
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
}

input[group="last"],
textarea[group="last"],
select[group="last"] {
    margin-bottom: 10px;
    border-top-right-radius: 0;
    border-top-left-radius: 0;
}