app/assets/stylesheets/transport_surveys.scss
#transport_survey li.nav-item {
width: calc(100% / 5);
}
#transport_survey .btn-primary {
background-image: none;
color: $white;
}
#transport_survey .btn-outline-secondary {
background-image: none;
}
#transport_survey .btn-outline-secondary:hover {
background-color: $light;
}