button.c-tabs-group__tab-button {
    border-style: double;
}

.c-tabs-group__tab-button[aria-expanded="true"]{
  background-color: #ffffff !important;
}

.c-tabs-group__tab-button[aria-expanded="false"]{
  background-color: #e2e2e2 !important;
}

.c-tabs-group__tab {
    border-style: solid;
}

.c-tabs-group__tab {
    background-color: #ffffff !important;
}